Log in

Relevant bibliographies by topics / Wastewaters treatment / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Wastewaters treatment.

Dissertations / Theses on the topic 'Wastewaters treatment'

Author: Grafiati

Published: 4 June 2021

Last updated: 22 February 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Wastewaters treatment.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Ener, Alptekin Emel. "Anaerobic Treatment Of Dilute Wastewaters." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609461/index.pdf.

Full text

Abstract:

In this study, domestic wastewater was used to determine the anaerobic treatment performances of a dilute wastewater in one-phase upflow anaerobic sludge blanket (UASB) system and two-phase upflow anaerobic filter (UAF) and UASB system. The acidification performances of domestic wastewater were compared in UAF and UASB reactors. The degree of acidification is higher in UAF reactor (31%) compared to UASB reactor (18%) at 2 h hydraulic retention time (HRT) in the anaerobic treatment of domestic wastewaters. The effluent total volatile fatty acid (tVFA) concentration was higher in UAF reactor tha

APA, Harvard, Vancouver, ISO, and other styles

2

Karhu, M. (Mirjam). "Treatment and characterisation of oily wastewaters." Doctoral thesis, Oulun yliopisto, 2015. http://urn.fi/urn:isbn:9789526208817.

Full text

Abstract:

Abstract Oily wastewaters are heterogeneous, containing various types of oils, surfactants from detergents, metals etc. Oily wastewaters are produced from a wide range of industries such as metalworking, petroleum refineries, the petrochemical industry, transportation as well as the textile and food industries. Oily wastewaters, especially those containing stable oil-in-water emulsions, require advanced treatment as conventional treatment methods have their limitations to meet ever-stricter environmental regulations. Ultrafiltration is a widely accepted and commonly used treatment method for o

APA, Harvard, Vancouver, ISO, and other styles

3

Kunjikutty, Sobhalatha Panangattu. "Floodplain filtration for treating municipal wastewaters." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100641.

Full text

Abstract:

The effectiveness of a cheap, low-tech, environmentally and technically favorable treatment of secondary treated municipal wastewater by contaminant removal through a floodplain-soil filter was evaluated using floodplain-simulating field lysimeters, packed with a sandy soil in 2002 and sand in 2003 and 2004. Secondary treated wastewaters from Vaudreuil (2002 and 2003) and Pincourt (2004) Wastewater Treatment Plants were used as influent. This was applied at rates of 0.06, 0.19, and 0.31 m3 m-2 d -1 to vegetated lysimeters, and at a rate of 0.19 m3 m-2 d-1 to bare-soil lysimeters.<br>Removal of

APA, Harvard, Vancouver, ISO, and other styles

4

Chen, Jeffrey Bou-Wei. "Membrane bioreactors for anaerobic treatment of wastewaters." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32045.

Full text

Abstract:

Anaerobic treatment of municipal wastewaters or other wastewaters of weaker strength has conventionally been difficult, especially in regions of cooler climate. Issues with solids retention and sufficient biomass concentration and activities required for treatment are usually of primary concern in these situations. However, the recent incorporation of membranes in the anaerobic treatment of municipal wastewater has made this technology feasible through the absolute retention of biomass within the reactor. Among the many advantages this technology has over its aerobic membrane bioreactor

APA, Harvard, Vancouver, ISO, and other styles

5

Chen, Tong, and 陳彤. "Anaerobic treatment of benzoate- and phenol- containing wastewaters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31212918.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Low, Euan Wallace. "Reducing biomass production during the treatment of wastewaters." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624222.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Chen, Tong. "Anaerobic treatment of benzoate- and phenol- containing wastewaters /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17590607.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Trerise, Margot Alana. "Evaluation of primary and secondary treatment of distillery wastewaters." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1246.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Stronach, S. M. "Anaerobic treatment of industrial wastewaters in high rate bioreactors." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/46682.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Wolfe, Christopher L. "Biological and physical treatment of crab processing industry wastewaters." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-08042009-040526/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Hertle, Chris. "High rate anaerobic treatment of wastewaters - two pilot studies." Thesis, Hertle, Chris (1991) High rate anaerobic treatment of wastewaters - two pilot studies. Masters by Research thesis, Murdoch University, 1991. https://researchrepository.murdoch.edu.au/id/eprint/52411/.

Full text

Abstract:

Anaerobic technology is used extensively for the treatment of food, meat and agricultural-based industrial wastewaters. Historically, large completly mixed anaerobic digesters much like sewage sludge digesters were used. More recently the use of high rate fixed film and sludge-blanket reactors has gained popularity. These reactors require low land area, achieve high loading rates and are cost-effective with energy recovery. There is now a significant data base, both pilot and full-scale, indicating that high-rate anaerobic technology is a sound option for the treatment of high strength industr

APA, Harvard, Vancouver, ISO, and other styles

12

Rostron, Wendy Margaret. "Nitrification of high strength ammonia wastewaters using immobilised nitrifiers." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286353.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Vilajeliu, Pons Anna. "Carbon and nitrogen treatment in industrial wastewaters using bioelectrochemical systems." Doctoral thesis, Universitat de Girona, 2017. http://hdl.handle.net/10803/406094.

Full text

Abstract:

The doctoral thesis has focused on the simultaneous removal of carbon and nitrogen in BES for future application in the treatment of industrial wastewater as swine manure. The bacteria that use the electrode as electron acceptor (bioanode) and as electron donor (biocathode) to reduce undesired products in industrial waters has investigated. This has culminated in a process patent (WO / 2015/150610) by LEQUiA group. The researcher has studied in deep the technology, optimizing the nutrient treatment (1.2 kg COD m-3 s-1 and 370 g N m-3 d-1), improving the electrochemical efficiency (5 W m- 3) an

APA, Harvard, Vancouver, ISO, and other styles

14

Barclay, D. Scott. "Batch treatment of textile wastewaters with modified bentonite adsorbent blends." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0017/MQ55652.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Wright, Harold 1962. "Characterization of soybean peroxidase for the treatment of phenolic wastewaters." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22841.

Full text

Abstract:

Soybean peroxidase (SBP) was investigated as an alternative to horseradish peroxidase (HRP) in the catalytic removal of phenolic compounds from wastewaters. The catalytic activity of SBP depended on reaction pH and hydrogen peroxide concentration. A pseudo steady state kinetic model describing the dependence of activity on peroxide concentration was derived and apparent kinetic constants describing the oxidation of SBP by hydrogen peroxide and the reduction of SBP by phenol were determined. SBP incubated at 25$ sp circ$C was relatively stable in neutral and alkaline buffer but was inactivated

APA, Harvard, Vancouver, ISO, and other styles

16

Boo, Chanhee. "Novel Desalination Membranes for Sustainable Treatment of Hypersaline Industrial Wastewaters." Thesis, Yale University, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13851845.

Full text

Abstract:

<p> An increasing demand exists for the treatment of hypersaline industrial wastewaters such as those from the shale gas industry, seawater desalination plants, and thermoelectric power-generating facilities. Membrane distillation (MD) is an emerging thermal-based desalination process, which can potentially treat hypersaline industrial wastewaters by exploiting low-grade or waste heat. High performance MD membranes are the key to the advancement and further commercialization of this emerging desalination technology. This research aims at (i) developing novel MD membranes with special surface w

APA, Harvard, Vancouver, ISO, and other styles

17

Yermakovych, Iryna, Lennart Mårtensson, Britt-Marie Svensson, and N. Samoilenko. "Investigation of Hard Biodegradable Pharmaceuticals Pollutants Treatment of Hospital Wastewaters." Thesis, Linnaeus University, 2014. http://repository.kpi.kharkov.ua/handle/KhPI-Press/25453.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Chapman, Jeanette. "Land disposal of winery and distillery wastewaters /." Title page, contents and summary only, 1995. http://web4.library.adelaide.edu.au/theses/09PH/09phc4658.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Janna, Hussein. "Occurrence and removal of emerging contaminants in wastewaters." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/6097.

Full text

Abstract:

Over the past decade, the occurrence and removal of emerging contaminants in the environment has received much attention. Both natural and synthetic progestogens, which are hormones, and also benzotriazoles are two examples of such emerging contaminants. Sewage treatment works are recognised as one of the main routes of these compounds to the environment. Low concentrations (nanograms per litre) of biologically active chemicals may exhibit an impact on aquatic organisms and human health. This study was undertaken to determine the occurrence and removal of these two classes of chemicals at sewa

APA, Harvard, Vancouver, ISO, and other styles

20

Castellar, da Cunha Joana Amèrica. "WETWALL : an innovative design concept for the treatment of urban wastewaters." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/671070.

Full text

Abstract:

The development of society has led to a global concern regarding the improvement of resources performance, especially water. The design of nature-based solutions (NBS) for the treatment and reuse of wastewaters, in accordance with circular economy principles (reuse, recycling and reducing) can be a key factor regarding the preservation of natural capital and climate change mitigation. Therefore, WETWALL design concept aims to integrate NBS, such as constructed wetlands (CWs) and living walls (LWs) as an innovative urban wastewater treatment which also can foment others ecosystem services, such

APA, Harvard, Vancouver, ISO, and other styles

21

Kostinec, Robert A. "Constructed wetland use for treatment of dairy milkhouse wastewaters in Maine." Fogler Library, University of Maine, 2001. http://www.library.umaine.edu/theses/pdf/KostinecRA2001.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Freese, Lucy Helen. "The treatment of sulphate laden wastewaters in the anaerobic baffled reactor." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271540.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Akhidime, Iduma Devine. "Aspects of expanded bed nitrification including treatment of oil refinery wastewaters." Thesis, Manchester Metropolitan University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509884.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Brindle, Keith. "Membrane aeration bioreactors for the treatment of high oxygen demanding wastewaters." Thesis, Cranfield University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241860.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Musvoto, Eustina Vongai. "Mathematical modelling of integrated chemical, physical and biological treatment of wastewaters." Master's thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/9676.

Full text

Abstract:

Includes bibliographical references.<br>The development of a kinetic-based model to simulate chemical, physical and biological processes in three phase (gaseous-aqueous-solid) mixed weak acid/base systems is described. The chemical processes are expressed in terms of the kinetics of the forward and reverse reactions for the dissociation of the weak acid/bases. In this approach the H⁺ and all the species of the weak acidfbases of interest are included and the pH is calculated directly from H⁺ via pH = -log (H⁺). The advantage of this approach over the alkalinity/equilibrium chemistry approach i

APA, Harvard, Vancouver, ISO, and other styles

26

Komesli, Okan Tarik. "Use Of Membrane Bioreactors In Treatment And Re-use Of Domestic Wastewaters." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607028/index.pdf.

Full text

Abstract:

This study was carried out to investigate performance of a Vacuum Rotating Membrane (VRM) type membrane bioreactor (MBR). During the study, the VRM plant was erected from scratch and operated in METU campus. The plant was composed of two tanks. First one was about 100 m3 and it was used for biological treatment<br>the second tank, about 30 m3, was used as filter chamber. The permeate flow rate was adjusted between 6 and 8.5 m3/h giving a hydraulic retention time (HRT) of 18 hours during the study. In the aeration tank, dissolved oxygen (DO) was adjusted to between 4 and 0.1 mg/L to see the eff

APA, Harvard, Vancouver, ISO, and other styles

27

Sandberg, Maria. "Efficient treatment of forest industrial wastewaters : Energy efficiency and resilience during disturbances." Doctoral thesis, Karlstads universitet, Fakulteten för teknik- och naturvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-13031.

Full text

Abstract:

This work concerns the efficient treatment of wastewaters from pulp and paper mills by means of aerobic biological processes. For treatment processes there are many aspects of efficiency and the present study investigates both energy efficiency and purification efficiency during disturbances. Special focus is put on wood extractives, such as resin acids and fatty acids, since they can cause negative effects in fish and other organisms in the receiving waters. They can furthermore be toxic to microorganisms in a biological treatment plant. They also affect oxygen transfer, which is important fo

APA, Harvard, Vancouver, ISO, and other styles

28

Alrhmoun, Mousaab. "Hospital wastewaters treatment : upgrading water systems plans and impact on purifying biomass." Thesis, Limoges, 2014. http://www.theses.fr/2014LIMO0042/document.

Full text

Abstract:

Cette recherche porte sur l’élimination des micropolluants pharmaceutiques des effluents hospitaliers par des procédés biologiques classiques (boue activée) et membranaire. Il est montré que les systèmes à membrane, externe ou immergée, permettent un meilleur traitement, ou une meilleure rétention, de plus de 50% des molécules pharmaceutiques mesurés. Afin d’améliorer l’efficacité des procédés membranaires, des supports bactériens ont été ajoutés dans le bassin biologique permettant de diminuer considérablement le colmatage. Il est montré qu’une des conséquences de la présence de ce garnissage

APA, Harvard, Vancouver, ISO, and other styles

29

Edwards, Justin Kenneth. "Reed bed systems for the treatment of wastewaters and for sludge dewatering." Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343453.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Madapura, Eregowda Tejaswini Gowda. "Anaerobic treatment and resource recovery from methanol rich waste gases and wastewaters." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC2012.

Full text

Abstract:

Le méthanol est un composé organique volatil (COV) important, présent dans les effluents gazeux et liquides des industries de transformation telles que les pâtes à papier et papiers, la fabrication de peinture et les raffineries de pétrole. Aux États-Unis seulement, environ 55 377 tonnes de méthanol ont été émises dans l'atmosphère en 2017 et au moins 65% du total des émissions provenaient des usines Kraft des industries de la pâte à papier et du papier. Le traitement biologique anaérobie des effluents gazeux et liquides riches en méthanol a été testé dans des configurations de bioréacteurs, t

APA, Harvard, Vancouver, ISO, and other styles

31

Corbett, Christopher John. "The Rhodes BioSure process in the treatment of acid mine drainage wastewaters." Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1007405.

Full text

Abstract:

While sulphate-enriched wastewaters are generated in a number of industrial processes, such as tanning, paper manufacture and metals processing, the principal contributors to large-scale pollution from this source in South Africa are the gold and coal mining industries. Both biological and physico-chemical processes, set in train by mining operations, give rise to the oxidation of sulphur species, and the resultant generation of AMD. The Vaal River system is most affected and receives large tonnages of mining related salinity as both direct discharges, and in diffuse runoff flows. The long-ter

APA, Harvard, Vancouver, ISO, and other styles

32

Forss, Jörgen. "Microbial treatment of textile wastewater applicable in developing countries." Doctoral thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-23507.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Yeh, Ruth Yu-Li. "Treatment of dye wastewaters by adsorption with and without the bio-oxidation process." Thesis, University of South Wales, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295273.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Dekker, Leendert Gideon. "Development of integrated algal ponding systems in the treatment of wine distillery wastewaters." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1004530.

Full text

Abstract:

In South Africa, wastewater disposal in the wine and distilling industry is undergoing a profound transformation as a result of fundamental changes in regulations and license requirements. To deal with this problem conventional Waste Stabilisation Ponding systems have been used by the industry together with irrigation and evaporation disposal practises. Although effective in the evaporation and containment disposal functions, these pond systems are generally not properly designed and/or managed, resulting in overloading and, at times, the generation of seriously offensive odour problems. Preli

APA, Harvard, Vancouver, ISO, and other styles

35

Tao, Ran. "Nutrient and organic matter removal from wastewaters with microalgae." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC2019/document.

Full text

Abstract:

L'utilisation des microalgues dans le traitement des eaux usées est de plus en plus étudiée pour intégrer/remplacer les systèmes de traitement actuels permettant d'éliminer les nutriments et autres polluants. Cependant, l’utilisation des microalgues dans le traitement des eaux usées en est principalement au stade de la recherche, par exemple faible élimination des nutriments et croissance de la biomasse des microalgues. Le but de cette thèse était de permettre une élimination efficace des éléments nutritifs et de la matière organique des eaux usées par les microalgues tout en favorisant la pro

APA, Harvard, Vancouver, ISO, and other styles

36

Khalid, Muhammad Imran. "Development of an intelligent dynamic modelling system for the diagnosis of wastewater treatment processes." Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/1153.

Full text

Abstract:

In the 21st Century, water is already a limited and valuable resource, in particular the limited availability of fresh water sources. The projected increase in global population from 6 billion people in 2010 to 9 billion in 2050 will only increase the need for additional water sources to be identified and used. This situation is common in many countries and is frequently exacerbated by drought conditions. Water management planning requires both the efficient use of water sources and, increasingly, the re-use of domestic and industrial wastewaters. A large body of published research spanning se

APA, Harvard, Vancouver, ISO, and other styles

37

Erguder, Tuba Hande. "The Development And Use Of Combined Cultures For The Treatment Of Low Strength Wastewaters." Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606136/index.pdf.

Full text

Abstract:

This study was carried out to develop combined cultures which were composed of anaerobic and aerobic cultures, and could survive and operate under alternating aerobic and/or microaerobic / anaerobic conditions in semi-continuous and Upflow Sludge Blanket (USB) reactors. Granular combined cultures with median diameter of 1.28-1.86 mm and 0.8 mm were developed from suspended anaerobic and aerobic cultures in semi-continuous and USB reactors, respectively. Significant specific methanogenic activity (SMA, 14-42 mL CH4/g VSS.hr) and specific oxygen uptake rate (SOUR, 6-47 mg DO/g VSS.hr) values of

APA, Harvard, Vancouver, ISO, and other styles

38

Chi, Zhilong. "Prospects for the application of advanced oxidation technology in the treatment of pharmaceutical wastewaters." Магістерська робота, Kyiv National University of Technology and Design, 2021. https://er.knutd.edu.ua/handle/123456789/19251.

Full text

Abstract:

Advanced Oxidation Technology based on persulfate activation is an important part of advanced oxidation technology for water treatment, in which catalyst plays a very important role. In this master's thesis, LaCoO3/g-C3N4 catalyst was prepared by hydrothermal method and the catalytic degradation efficiency of LaCoO3/g-C3N4 catalyst for pharmaceutical wastewater was investigated, and the relationship between catalyst structure and degradation efficiency in catalytic activation of PMS was discussed. Based on the study of catalytic activated PMS oxidative degradation kinetic characteristics, inve

APA, Harvard, Vancouver, ISO, and other styles

39

Jackson-Moss, Clive Alan. "An investigation into the use of anaerobic digestion for the treatment of tannery wastewaters." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1004120.

Full text

Abstract:

The anaerobic digestion of tannery wastewaters was investigated with a view to using this form of treatment in the tanning industry. As these wastewaters are extremely complex and contain high concentrations of both inorganic and organic compounds, the effect of these individual compounds on the anaerobic digestion process was investigated in detail, in order to ascertain the fate of these compounds during the digestion process. The experiments comprising the initial toxicity study were carried out as adaptation experiments using a synthetic wastewater. It was found that the heavy metals such

APA, Harvard, Vancouver, ISO, and other styles

40

Melamane, Xolisa Lorraine. "Treatment of wine distillery wastewaters by high rate anaerobic digestion and submerged membrane systems." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1004022.

Full text

Abstract:

Experiences in treating wine distillery wastewaters (WDWs) contribute to the field of oenology as many oenologists are concerned with the selection, efficiency and economy of their wastewaters. Wine distillery wastewaters are strongly acidic, have high chemical oxygen demand (COD), high polyphenol content and are highly variable. Primary attention was focussed on sustainable biological treatment of raw wine distillery wastewater (RWDW) and fungally pre-treated wine distillery wastewater (FTWDW) by energy-efficient high rate anaerobic digestion (AD). This study also explored the development of

APA, Harvard, Vancouver, ISO, and other styles

41

Xiao, Suo. "Phagotrophic Algae Based Approaches for Advanced Wastewater Treatment." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1542368310384856.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Alexiou, Ioannis. "A study of pre-acidification reactor design for anaerobic treatment of high strength industrial wastewaters." Thesis, University of Newcastle Upon Tyne, 1998. http://hdl.handle.net/10443/411.

Full text

Abstract:

Acidogenic activities, as part of anaerobic digestion, have been discovered since the beginning of the century. Still it was mid '60's when it was initially stated in the literature that engineered phase separation would increase stability in anaerobic reactors and possibly increase substrate digestion rates. Pioneering research in the early '70's, with the first report on two-phase digestion of sludges, came as practical proof of those past assumptions. Today phase separation is a proposed option to single-stage digestion, due to the many advantages over conventional operation. Such an applic

APA, Harvard, Vancouver, ISO, and other styles

43

Dunn, Kevin Matthew. "The biotechnology of high rate algal ponding systems in the treatment of saline tannery wastewaters." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1004066.

Full text

Abstract:

Salinisation has been identified as a major cause of the progressive deterioration in the public water system in South Africa. To deal with this problem Waste Stabilisation Ponding systems have been used by the Leather Processing Industry as zero-dischaJ;ge wastewater evaporation disposal processes in water-limited inland regions of the country. While effective in the evaporation disposal function these systems are plagued by the generation of serious odour nuisance creating intractable environmental problems relating to adjacent residential communities. High loading to ponds of organic compou

APA, Harvard, Vancouver, ISO, and other styles

44

Boshoff, Genevieve Ann. "Development of integrated biological processing for the biodesalination of sulphate- and metal-rich wastewaters." Thesis, Rhodes University, 1999. http://hdl.handle.net/10962/d1003958.

Full text

Abstract:

The substantial pollution threat to the South African environment from acid mine drainage (AMD) effluents has been well documented. Due to the juvenile nature of acidity in these flows, any remediation strategies implemented will need to function effectively and at low cost for long periods of time. The widespread use of sulphate reducing biological systems for the treatment of such effluents, and in particular large volume flows, has been limited. The supply of inexpensive electron donor and carbon sources, as well as appropriate reactor designs capable of handling large volume flows, have be

APA, Harvard, Vancouver, ISO, and other styles

45

Bonacci, Federica. "Development of enzymatic, photocatalytic and biological processes for the degradation of micropollutants in municipal and agro-industrial wastewaters." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

Find full text

Abstract:

This study is focused on biodegradation of micropollutants using different different enzymatic, photocatalytic and biological process. Various extracellular ligninolytic enzymes were selected and tested for degradation of pharmaceuticals in real wastewater. Ligninolytic enzymes have high degradation potential and been already applied for successful removal of various persistent organopollutants. Direct application of free enzymes into wastewater is not sustainable for a long time, therefore immobilization of the enzymes onto nano- and/or resin particles was performed. Immobilization has shown

APA, Harvard, Vancouver, ISO, and other styles

46

Eloff, Estie. "Evaluation of hydrogen as energy source for biological sulphate removal in industrial wastewaters." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50344.

Full text

Abstract:

Thesis (MSc)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: Biological removal of sulphate from wastewater can be achieved by using a gas mixture consisting of 80% hydrogen and 20% carbon dioxide as energy and carbon sources. A novel reactor, including a venturi device for optimal hydrogen gas-liquid contact, and geotextile for immobilisation of the sulphate reducing bacterial community, was introduced. Efficient, relatively stable sulphate removal was obtained when the reactor was operated in continuous mode. The maximum sulphate removal rate obtained when the reactor was 8% pa

APA, Harvard, Vancouver, ISO, and other styles

47

Armioun, Shaghayegh. "Using Ultrasound as a Pretreatment Method for Ultraviolet Disinfection of Wastewaters." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20263.

Full text

Abstract:

In this study, the effects of neutral particles addition on the breakage of wastewater flocs toimprove the efficiency of sonication pretreatment for UV disinfection process have been studied.Kaolin particles as a potentially useful material that is neutral, natural and cheap were added towastewater samples prior to sonication. Results obtained in this study indicated that hard andsmall kaolin particles do not have any significant effect on the particle breakage efficiency byultrasound. The addition of kaolin particles did not significantly increase the cavitation activity(as characterized by p

APA, Harvard, Vancouver, ISO, and other styles

48

Scherman, Patricia Ann (neé Goetch). "The microbial production of polyphenol oxidase enzyme systems and their application in the treatment of phenolic wastewaters." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1004108.

Full text

Abstract:

Phenolic compounds are a group of organic chemicals present in the wastewaters of many synthetic industrial processes. Due to their extreme toxicity to man and animals, and deleterious impact on the environment, a range of techniques exist for the effective treatment and disposal of these pollutants. Biological degradation using microbial enzymes presents a valuable alternative to conventional wastewater treatment systems. This research was therefore initiated to investigate the polyphenol oxidase enzyme system and the feasibility of its application for effluent treatment and studies in organi

APA, Harvard, Vancouver, ISO, and other styles

49

Jemaat, Zulkifly Bin. "Treatment of complex industrial wastewaters containing ammonium and phenolic compounds using granular sludge in continuous airlift reactors." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/117276.

Full text

Abstract:

Esta tesis doctoral versa sobre la eliminación simultánea de compuestos fenólicos con reactores de biomasa granular trabajando en continuo. El estudio está dividido en dos partes principales; el primer tema trata sobre la modelización de la nitritación, mientras que el otro está dedicado al trabajo experimental sobre la nitritación y eliminación simultánea de compuestos fenólicos. En el estudio de modelización, se desarrolló un modelo matemático de biopelícula para describir la nitritación en reactores de biomasa granular aerobia operando en continuo. El modelo incorpora una estrategia de con

APA, Harvard, Vancouver, ISO, and other styles

50

Platten, William E. III. "Anaerobic Treatment of Wastewaters Containing 2,4-dinitroanisole and N-methyl paranitro aniline from Munitions Handling and Production." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299010001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!