STUDIES ON THE BIOLOGICAL TREATMENT OF INDUSTRIAL WASTEWATER STREAMS

2012 ◽  
Vol 11 (2) ◽  
pp. 435-438 ◽  
Author(s):  
Viktoria Pitas ◽  
Bence Fazekas ◽  
Zsuzsanna Banyai ◽  
Karoly Reich ◽  
Krisztian Varga ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Biological Treatment

Sustainable Utilization of Sewage Sludge: Review of Technologies

2018 ◽  
Vol 762 ◽  
pp. 121-125 ◽  
Author(s):  
Agnese Stunda-Zujeva ◽  
Imants Kreicbergs ◽  
Olita Medne
Keyword(s):  
Industrial Wastewater ◽  
Biological Treatment ◽  
Mineral Resources ◽  
Wastewater Sludge ◽  
Secondary Source ◽  
Sustainable Utilization ◽  
Toxic Substances ◽  
Sludge Treatment ◽  
Industrial Sludge ◽  
New Methods

Biological treatment of municipal and industrial wastewater becomes more common in EU countries. As a result, the amount of wastewater sludge increases. The political and economic situation in world is requiring new methods for recovery of non-renewable mineral resources. Sludge is great secondary source of many elements. The aim of this research is to summarize available techniques for sustainable utilization of industrial sludge and recovery of critical raw minerals (CRMs). The most common sustainable method is using treated sludge as fertilizer in agriculture due to high content of P, N, C and microelements. However, this method has many restrictions, e.g. it can contain toxic substances or lack of appropriate land. Thermal sludge treatment methods like pyrolysis have developed crucially in last decade and pyrolysis units for sludge treatment are commercially available now. Pyrolysis becomes the most sustainable method due to recovery of CRMs and better energy recovery comparing to incineration.

Chemical and Biological Treatment of Dyes

2020 ◽  
pp. 170-204
Author(s):  
Kiran Meghwal ◽  
Reema Agrawal ◽  
Srishti Kumawat ◽  
Nirmala Kumari Jangid ◽  
Chetna Ameta
Keyword(s):  
Azo Dyes ◽  
Aquatic Environment ◽  
Industrial Wastewater ◽  
Biological Treatment ◽  
New Technologies ◽  
Aquatic Organisms ◽  
Textile Wastewater ◽  
Important Concern ◽  
Industrial Needs ◽  
Living Being

Life of living or non-living being depends on water; in short, water is life. But these days, with the growing industrialization, it is spoiling a lot. Wastewater contains contaminants like acids, bases, toxic organic and inorganic dissolved solids, and colors. Out of them, the most undesirable are colors caused mainly by dyes. Color and other compounds present in water are always not desirable for domestic or industrial needs. The wastes of dyes are predominant amongst all the complex industrial wastewater. This water is dark in color and highly toxic, blocking the sunlight and affecting the ecosystem. Among all the dyes, azo dyes contribute to commercial dyes used widely in textile, plastic, leather, and paper industries as additives. The removal and degradation of azo dyes in aquatic environment is important because they are highly toxic to aquatic organisms. For every industry, clean technology has become an important concern. In this chapter, the authors discuss about existing processes as well as promising new technologies for textile wastewater decolorisation.

Development of a Pretreatment Program to Improve Biological Treatability of High Strength and Toxic Industrial Wastewater

1994 ◽  
Vol 29 (9) ◽  
pp. 29-37 ◽  
Author(s):  
A. Brenner ◽  
S. Belkin ◽  
A. Abeliovich
Keyword(s):  
Industrial Wastewater ◽  
Biological Treatment ◽  
Treatment Process ◽  
Control Program ◽  
High Strength ◽  
Small Scale ◽  
Waste Streams ◽  
Wastewater Stream ◽  
Biological Treatability ◽  
Biological Treatment Process

A biological treatment process has been suggested as the main treatment stage for a high (organic) strength industrial wastewater stream, discharged by several chemical industries within a large industrial park. Treatability studies have indicated that the wastes contain a fraction of toxic and non-biodegradable organic matter, which limits the implementation of a conventional biological treatment process for the combined wastewater stream. Therefore, an in-plant control program including waste segregation and process-specific pretreatments is proposed. A protocol that enables selection of waste streams amenable to biological treatment and identification of problematic streams requiring pretreatment is presented and demonstrated. It includes simplified laboratory procedures used for chemical and toxicological characterization of source streams originating in various processes. The results can be used for the development of a pretreatment program for problematic waste streams, based upon local small-scale solutions.

RESEARCH OF OIL REFINING PLANT WASTEWATER’S ONE-STAGE BIOLOGICAL TREATMENT

2013 ◽  
Vol 3 (4) ◽  
pp. 24-27
Author(s):  
A. V BELYaKOV
Keyword(s):  
Water Quality ◽  
Industrial Wastewater ◽  
Biological Treatment ◽  
Municipal Wastewater ◽  
Oil Refining ◽  
Nitrogen Compounds ◽  
Technological Parameters ◽  
One Stage ◽  
Refining Plant ◽  
Stage Scheme

The article reports on the research results of wastewaters biological treatment at Novokuibyshevsk oil refining plant using the technology of nitrification - denitrification. The paper reveals the possibility of meeting modern requirements for treated water quality by nitrogen compounds while treating industrial wastewater without mixing it with municipal wastewater. Necessary dependencies and technological parameters for choosing the mode of experimental and production use of treatment structures by one-stage scheme with nitrification-denitrification are given.

Contribution A La Caractérisation Physico-Chimique Des Effluents De La Cosumar (Casablanca, Maroc) En Vue De Leur Traitement Approprié

2018 ◽  
Vol 14 (9) ◽  
pp. 212
Author(s):  
Errogui Youssef ◽  
Nahli Abdelmottalib ◽  
Chlaida Mohamed ◽  
Chbihi Kamal
Keyword(s):  
Industrial Wastewater ◽  
Biological Treatment ◽  
Food Industry ◽  
Physicochemical Characteristics ◽  
Sulphate Content ◽  
Appropriate Treatment ◽  
Solids Content ◽  
Kjeldahl Nitrogen ◽  
Raw Wastewater

The production process of the agro-food industry is aimed to ensure consumer’s solvency and satisfaction. As a result, these industries are accelerating their pace and rate of production by resorting to the intensive use of natural resources, especially water and energy. This production rate is accompanied by an increase in the volume of wastewater. According to the normative and legal requirements governing the protection of environment, this wastewater requires characterization in order to guide the choice of their treatment system and recovery. This paper focuses on the physicochemical characteristics of sugar agro-food industry wastewater (Cosumar-Morocco) in order to guide the choice of their appropriate treatment, allowing the reduction of their impacts and nuisances on the marine receiving environment or their reuse. The results obtained, following a follow-up of 4 months (March, April, May and June 2015), revealed that the industrial wastewater of Cosumar is relatively warm and basic with average values of temperature and pH respectively equal to 42, 71 ° C (± 2.61) and 9.38 (± 1.64). These liquid effluents also exhibit a high charge of oxidable matter (average COD=4801.33 mg.l-1 (±2342.66), organic matter (BOD5=3959.01 mg.l-1 ±2293.65), and particulate matter (average solids content = 275, 5mg.l-1±143.25). Moreover, the raw wastewater presents a strong mineralization, which is justified by an Electrical Conductivity of 6828.33 μs.cm-1 (±1704.44) and a Sulphate content of 94.33 mg.l-1 (± 31.66). The average concentrations of Kjeldahl Nitrogen and total Phosphorus are 6.5 mg.l-1 (± 2.54) and 0.67 mg.l-1 (±0.562) respectively. The COD/BOD5 ratio is 1.21, indicating the biodegradability of the wastewater produced, through which the biological treatment can be recommended.

scholarly journals Oil and Grease Removal from Industrial Wastewater Using New Utility Approach

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
H. S. Abd El-Gawad
Keyword(s):  
Industrial Wastewater ◽  
Biological Treatment ◽  
Natural Material ◽  
Contact Period ◽  
Oil And Grease ◽  
Measure Flow Rate ◽  
Utility Approach ◽  
High Length ◽  
Biological Treatment Process

The present study is an attempt to investigate oil and grease pollution that may pollute fresh water and influence aquatic environment. Then removal of oil and grease from manufacturing wastewater befall essential but common techniques not enough. Enzyme and adsorption units representing major developed new laboratory were selected to assess the water quality and humiliation prospective of oil and grease from wastewater. Several components and environmental variables that were dissolved oxygen, bacteriology measure, flow rate and adsorption material amount studied to assess the removal performance of oil and grease. The results elucidated significant variations among different tests which influenced microbial necessary role of oxidation declining develop biological treatment process reached to 72%. The study stressed out natural material (zeolite) that enhanced organic reduction under optimal conditions. These conditions were closer spacing and high length of adsorbing unit that led to increase oil and grease contact period with adsorbent and added to increase performance removal reached to 99%.

Biological Treatment of Agro‐Industrial Wastewater for the Production of Glucoamylase andRhizopusBiomass

2006 ◽  
Vol 41 (3) ◽  
pp. 471-483 ◽  
Author(s):  
F. Beolchini ◽  
G. Del Re ◽  
G. Di Giacomo ◽  
L. Spera ◽  
F. Vegliò
Keyword(s):  
Industrial Wastewater ◽  
Biological Treatment
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