Results for water polution act india UsHotSearchs - Great Document 2 doc

... °C 6.50 2. 50 2. 40 2. 20 2. 20 1.49 1.04 0.73 6.75 2. 50 2. 40 2. 20 2. 20 1.49 1.04 0.73 7.00 2. 50 2. 40 2. 20 2. 20 1.49 1.04 0.74 7 .25 2. 50 2. 40 2. 20 2. 20 1.50 1.04 0.74 7.50 2. 50 2. 40 2. 20 2. 20 1.50 ... 11 0- 120 5 0-3 0 or 12 0- 130 3 0-1 0 or 13 0- 150 <10 or >150 DO(mg l -1 ) >7 7-6 6-4 4-3 <3 COD-Mn (mg O 2 l...

Ngày tải lên: 19/06/2014, 16:20

... 2 5- 50 >5 0 25 Bariu m 2 5- 50 25 2 5- 50 25 Cad miu m 2 5- 50 >50 >50 25 2 5- 5 0 >5 0 2 5- 50 25 25 Chro miu m 2 5- 50 >50 >50 25 > 5 0 >5 0 2 5- 50 2 5- 50 ... >50 >50 2 5- 50 > 5 0 >5 0 25 2 5- 50 2 5- 50 Man gane se 25 2 5- 50 2 5- 50 25 2 5- 50 &g...

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... 0. 1-0 .3 kg BOD m -3 d -1 10 0-3 50 kg BOD ha -1 d -1 At least two ponds in series, each 5 days retention Typical depth 2- 5 m 1 -2 m 1-1 .5 m TSS: 5 0-7 0% TSS: increase TSS: 2 0-3 0% BOD: 3 0-6 0% ... Trickling filter Activated sludge BOD removal (%) 1 8 0-9 0 9 0-9 8 Kjeldahl-N removal (%) 6 0-8 5 8 0-9 5 Total N removal (%) 2 0-4 5 6...

Ngày tải lên: 19/06/2014, 16:20

... 0-1 0 -2 0-1 0-1 Chemically assisted 1 1 -2 1-3 (G) 0-1 0-1 Activated sludge 2 0 -2 0 -2 0-1 0-1 Biofiltration 2 0 -2 0 -2 0-1 0-1 Aerated lagoon 3 1 -2 1-3 (G) 1 -2 0-1 Oxidation ditch 2 1 -2 ... Oxidation ditch 2 1 -2 0 -2 1 -2 0-1 Disinfection 4 2- 6 0-1 0-4 0-3 Waste stabilisation ponds 5 1-6 (G) 1-3 (G) 1-4 1-4 Eff...

Ngày tải lên: 19/06/2014, 16:20

... been used for many years. End-of-pipe controls have been used mainly for discharges to water and process based controls for discharges to the atmosphere and for land disposal. the water. If ... achieve legally enforceable EQSs, the Water Pollution Control Act of Japan sets national uniform standards for direct discharges to water (known as E standards) and defines mass...

Ngày tải lên: 19/06/2014, 16:20

... phosphate limits for discharges to eutrophic waters (2 mg l -1 for populations between 10,000 and 100,000 and 1 mg l -1 for populations greater than 100,000). The criteria for recognising ... indicated that tyre abrasion on motorways can release typically 5 72 g ha -1 a -1 lead, 120 g ha -1 a -1 chromium and 115 g ha -1 a -1 nickel (Muschac...

Ngày tải lên: 19/06/2014, 16:20

... problems Lower-income countries (< US$ 650 per capita) Lower middle- income countries (US$ 65 0 -2 ,500 per capita) Upper middle-income countries (US$ 2, 50 0-6 ,500 per capita) Upper-income ... the costs of water treatment, but also to promote water conservation. 6.3.7 Deposit-refund system Although not a principal instrument for controlling water pollution, dep...

Ngày tải lên: 19/06/2014, 16:20

... instruments for encouraging efficient domestic and industrial water- use practices and for reducing wastewater volumes and loads. Water and sewerage fees can induce urban organisations to adopt water- saving ... of strategic actions. 7.6 References Asano, T. 1994 Reusing urban wastewater - an alternative and a reliable water resource. Wat. Int., 19(1), 3 6-4 2. Austin,...

Ngày tải lên: 19/06/2014, 16:20

... situation with the Table 9 .2 Differences in the emission-based and the water quality-based approaches to water pollution control Management aspect Emission-based approaches Water quality based approaches ... time ( 5 -2 0 years) and the associated performance parameters. A water price is agreed, from which the contractor has to recover costs and pay a lease fee to the municip...

Ngày tải lên: 19/06/2014, 16:20

... impacts on the physical environment, impacts on the water resources often imply impacts on the biological and socio-economic environment. Assessments of impacts on water quality should, therefore, ... water quality problem. Although they are less accurate, indirect techniques for obtaining the necessary information exist for a variety of water quality-related factors. It is pos...

Ngày tải lên: 19/06/2014, 16:20