INDUSTRIAL SOLID WASTE
3. Copper slag 0.0164 By product from smelting of copper 4. Fly ash 70.0 Coal based thermal power plants 5. Kiln dust 1.6 Cement plants 6. Lime sludge 3.0 Sugar, paper, fertilizer tan-neries, soda ash, calcium carbide industries 7. Mica scraper waste 0.005 Mica mining areas 8. Phosphogypsum 4.5 Phosphoric acid plant, Ammonium phosphate 9.
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CHAPTER 9: OCCUPATIONAL HEALTH HAZARDS AND SAFETY …
www.cpheeo.gov.insewage treatment plants. • Hydrogen sulphide generated in sewage and settled sludge is sealed within the static condition, so it does not disperse into the atmosphere easily. However, when agitated, it disperses all at ... • worker (A) and worker (B) opened the manhole cover to perform work in the manhole, and
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www.cpheeo.gov.inIn the “Handbook on Service Level Benchmarking” by MoUD, reuse and recycling of sewage is defined as the percentage of sewage recycled or reused after appropriate treatment in gardens and parks, irrigation, etc. and, is to be at least 20% to begin with. The objective of this chapter is to bring out guiding principles for practice in India.
CHAPTER 6: DESIGN AND CONSTRUCTION OF SLUDGE …
www.cpheeo.gov.inA compressor / blower supplies the air. Air-lift pumps and ejectors are pumping systems, which are though inherently inefficient, there are no moving parts inside and hence, their operation is fairly trouble-free. 6.2.2.3 Screw Pumps These are three major variations of these as under 1. Archimedean Screw (as in notation 2 in Table 6.5 and ...
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www.cpheeo.gov.inThe treatment can be either on-site or off-site like in the case of septage management. ... There are various on-site systems which can be used but with a caution to prevent ground water and surface water pollution due to indiscriminate disposal of sewage from these on-site systems. ... Polyethylene (HDPE) or Poly Vinyl Chloride (PVC ...
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www.cpheeo.gov.inflows over the slit, through the pipe and goes to a holding high-density polyethylene (HDPE) tank below the pipe on the outside. The scum is then sold to pollution board-authorized oil re-refining firms. The grit that settles in the trough below is drained to a sump and pumped to the beginning of the grit chamber.
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www.cpheeo.gov.in• Physical and chemical characteristics (quality) of the waste. The actual production of energy will depend upon specific treatment process employed, the selection of which is also critically dependent upon (apart from certain other factors described …
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