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Monday, August 10, 2020 | History

2 edition of Processing chrome tannery effluent to meet best available treatment standards found in the catalog.

Processing chrome tannery effluent to meet best available treatment standards

Lawrence K Barber

Processing chrome tannery effluent to meet best available treatment standards

by Lawrence K Barber

  • 218 Want to read
  • 17 Currently reading

Published by Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available to the public through the National Technical Information Service in Cincinnati, Springfield, Va .
Written in English

    Subjects:
  • Factory and trade waste,
  • Sewage -- Purification -- Activated sludge process,
  • Sewage sludge,
  • Tanning

  • Edition Notes

    Statementby Lawrence K. Barber, Ernest R. Ramirez, William L. Zemaitis
    SeriesResearch reporting series -- EPA-600/2-79-110
    ContributionsRamǐrez, Ernest Robert, 1923-, Zemaitis, William L, A.C. Lawrence Leather Co, Corvallis Industrial Environmental Research Laboratory. Food and Wood Products Branch, Industrial Environmental Research Laboratory (Cincinnati, Ohio)
    The Physical Object
    Paginationx, 152 p. :
    Number of Pages152
    ID Numbers
    Open LibraryOL13603748M

      Introduction to treatment of tannery effluents. 9. To avoid possible confusion arising due to differences in water consumption, it is practical to indicate the amount of pollutants generated per. A study was conducted to characterize Modjo tannery effluent (wastewater) and determine its impact on the Modjo River using some physicochemical parameters. Accordingly, three tannery wastewater samples along wastewater channel at different distances have been taken and three river water samples (one upstream and two downstream) were collected along the river to determine its impact on the : Haile Reda Amanial.

    Lawrence K Barber has written: 'Processing chrome tannery effluent to meet best available treatment standards' -- subject(s): Activated sludge process, Tanning, Factory and trade waste, Sewage. "Leather Tanning and Finishing Waste Management Research and Development Program" reviews waste management research and develop- ment activities for the leather tanning and finishing industry, emphasizing EPA's efforts. Other U.S. organizations involved are listed along with brief descriptions of their objectives. Research needs are also defined.

    Ram B, Bajpai PK, Parwana HK () Kinetics of chrome-tannery effluent treatment by the activated sludge system. Process Biochem 35()– Google Scholar Rameshraja D, Suresh S () Treatment of tannery wastewater by various oxidation and combined by:   Treatment of tannery effluent at ECCO in The Netherlands This feature is not available right now. Please try again later. Sludge Management in Tannery Effluent Treatment Plants (UNIDO.


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Processing chrome tannery effluent to meet best available treatment standards by Lawrence K Barber Download PDF EPUB FB2

EPA/ July PROCESSING CHROME TANNERY EFFLUENT TO MEET BEST AVAILABLE TREATMENT STANDARDS by Lawrence K. Barber A. Lawrence Leather Co., Inc.

Winchester, New Hampshire Ernest R. Ramirez Swift Environmental Systems Chicago, Illinois William L. Zemaitis Envirobic Systems New York, New York Grant No.

S Project. PROCESSING CHROME TANNERY EFFLUENT TO MEET BEST AVAILABLE TREATMENT STANDARDS Lawrence K. Barber A. Lawrence Leather Co., Inc. Winchester, New Hampshire Ernest R. Ramirez Swift Environmental Systems Chicago, Illinois William L. Zemaitis Envirobic Systems New York, New York Grant No.

S Pro j ec t Officer Jack L. Witherow. Processing chrome tannery effluent to meet best available treatment standards. Cincinnati: Industrial Environmental Research Laboratory, Office of Research and Development, U.S.

Environmental Protection Agency ; Springfield, Va.: Available to the public. Processing chrome tannery effluent to meet best available treatment standards / By Lawrence K. Barber, William L. Zemaitis, Ernest Robert Ramiřez, Ohio) Industrial Environmental Research Laboratory (Cincinnati, Corvallis Industrial Environmental Research Laboratory.

Food and Wood Products Branch. and A.C. Lawrence Leather Co. EPA (). Processing chrome tannery effluent to meet best available treatment standards, report no.

/, US Environmental Protection Agency, Industrial Environmental Research Laboratory, Cincinnati OH. FAO (a). World statistical compendium for raw hides and skins leather and leather footwear performed for treatment of tannery wastewater by various oxidation processes.

A search of the ISI web of knowledge shows a number of research articles on oxidation and combined process on treatment of tannery wastewater. Fig s 2 and 3 shows the yearly progress of publications and citations in the late twentieth century and during the present decade.

Thus, the Ranitec CETP with treatment capacity of 4, m 3 /d receiving effluent from 76 tanneries processing from raw to finished and using amongst others an anaerobic treatment system (lagoon) was upgraded to serve as a model for similar treatment plants in the region.

The biological treatment of the tannery wastewater substreams beamhouse (BH, pre-tanning steps) and tan-yard wastewater (TY, tanning, & wet-finishing process steps) and the application of an. Introduction to treatment of tannery effluents 7 Table 1.

An example of mass balance in leather processing Table 2. An example of average total pollution load – concentration in combined raw effluent, conventional process, water consumption: 45 m3/tonne. Chrome recovery plant, with a filter press Rotating drums - for separation of hair conclusion The treatment of tannery effluents is by now a well established technology, and modular common effluent treatment plants servicing traditional tannery clusters or newly created leather industry zones is a widely accepted approach.

The initial values of pH for the tannery waste water are acidic due to the use of the mineral acids in the process. Lime and chemical coagulations have been added to raise the alkalinity of the water.

This will remove % of BOD followed by biological oxidation which subse- Cited by: 3. Chromium tannery wastes cause serious environmental threats.

In the present study, an advanced oxidation technique based on electrocoagulation process was applied for the treatment of chrome tanning effluent as an alternative method for conventional chemical and biological processes.

The paper Introduction to treatment of tannery effluents was prepared based on technical inputs by J. Buljan and I. Kral. Valuable contributions by G. Clonfero. (T1) for the effective primary treatment of tannery effluents.

Belay () focused on the challenges/impacts of tannery effluent and evaluates the alternative treatment options used to treat, recover or recycle chromium from the waste water. The paper was done entirely on secondary data by consulting literatureAuthor: Gopal k.

Sharma, Anjani K. Dwivedi. Processing chrome tannery effluent to meet best available treatment standards - Industrial Environmental Research Laboratory, Office of Research and Development, U.S.

Environmental Protection Agency - Cincinnati. MARY AND MURALI MOHAN: A CASE STUDY: EVALUATION OF TANNERY EFFLUENT Indian 17 (1):The supernatant wastewater from secondary clarifier is stored in polishing tank and treated as tertiary treatment processing for hardness removal process by adding soda ash and alum ratio of andFile Size: KB.

Prior to disposal the effluent must meet stringent regulatory standards. The impact of tannery effluent includes the presence of ammonia and nitrates in water which is toxic to organisms for quantities greater than 10 Mg/1.

The sulphide constituent of effluent is significant as. present study, effluent samples were collected from a tannery in Khartoum -Sudan. The effluent samples were collected from the all stages of processing viz., soaking, liming, deliming, pickling, Chrome tanning and Retanning.

The physicochemical parameters of the tannery effluent viz., pH, alkalinity, acidity, biochemical oxygen demand (BOD 5File Size: KB. Tannery wastewater pretreatment system, wastewater characteristics and coagulants Fig.

1 shows the wastewater pretreatment system that is generally used in the tannery. All the wastewater from the different processing phases of leather production are mixed and settled in the balancing tank (also called the collecting tank).Cited by: The paper has focused on the challenges/impacts of tannery effluent and evaluates the alternative treatment options used to treat, recover or recycle chromium from the waste water.

The paper was done entirely on secondary data by consulting literature sources including scientific journals, chapters of books, conference report papers and by:. High salinity (1–10% w/v) of tannery wastewater makes it difficult to be treated by conventional biological treatment. Salt tolerant microbes can adapt to these saline conditions and degrade the organics in saline wastewater.

Four salt tolerant bacterial strains isolated from marine and tannery saline wastewater samples were identified as Pseudomonas aeruginosa, Bacillus flexus.Physico-Chemical Characteristics of Tannery Effluent Analysis of physico-chemical characteristics of the tannery effluent for a period of 12 months (from January to December ) has been studied and their results are given below.

Colour and Odour The colour of the tannery effluent was grey when observed visually andFile Size: KB. The treatment was carried out at laboratory scale on a real primary effluent coming from a centralized plant treating the wastewater of a large tannery district in Northern Italy [2] Microbial consortia Fungal and bacterial biosorptive degradation .