Results for water polution act india UsHotSearchs - Great Document 6 pptx

... 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 -1 ) <3 3-1 0 1 0-2 0 2 0-3 0 >30 COD-Cr (mg O 2 l -1 ) - - - - - ... (<4) 2. 5-1 0 ( 4-1 5) 1 0-3 0 (1 5-4 5) 3 0-1 10 (4 5- 165 ) >110 (> 165 ) Acidification pH 2 9. 0 -6...

Ngày tải lên: 19/06/2014, 16:20

... (mg l -1 ) - - 10 - Total P (mg l -1 ) 1 - 0.1 - Faecal coliform (No. per 100 ml) - - - <1,000 Nematode eggs per litre - - - <1 SAR - - - <5 TDS (salts) (mg l - 1 ) - - - <500 2 ... na 5 0-8 0 2 0-4 0 House connection 10 0-1 50 5 0-1 25 4 0-8 0 Multiple connection 15 0-2 50 10 0-2 50 8 0...

Ngày tải lên: 19/06/2014, 16:20

... <50 l cap -1 d -1 5 0-1 00 l cap -1 d -1 >100 l cap -1 d -1 Sewage production <5 m 3 ha -1 d -1 5-2 0 m 3 ha -1 d -1 >20 m 3 ha -1 d -1 Treatment options Dry on-site sanitation ... 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...

Ngày tải lên: 19/06/2014, 16:20

... 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 0-2 1-2 0-1 Disinfection 4 2 -6 0-1 ... 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 Effluent storage reser...

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 ... be needed for individual groundwater abstractions. It is possible to define the catchment area for a particular abstraction with information on the aquifer and on the rates of a...

Ngày tải lên: 19/06/2014, 16:20

... problems Lower-income countries (< US$ 65 0 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, de...

Ngày tải lên: 19/06/2014, 16:20

... 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, T. Roiled waters: water politics ... instruments for encouraging efficient domestic and industrial water- use practices and for reducing wastewater volumes and loads. Water and sewerage fees can induce urban or...

Ngày tải lên: 19/06/2014, 16:20

... emission-based and the water quality-based approaches to water pollution control Management aspect Emission-based approaches Water quality based approaches Effluent limits No site-specific ... water as it is perceived by the water user. • Apply financial (dis)incentives rather than inflexible command-and-control regulations to control, for example, waste discharges (see Chap...

Ngày tải lên: 19/06/2014, 16:20

... can be performed at various levels of complexity, from hand calculations to advanced state-of-the-art ecological modelling. 10.4 .6 Environmental impact assessment and cross-sectoral co-ordination ... 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,...

Ngày tải lên: 19/06/2014, 16:20