Page 59 - Chambal SR_2015-16

Effluent & Waste waste management efficiency. One such effective
measure was ‘at source’ treatment of effluents and
recycling of treated effluents back into the process.
the OutLOOK We have incorporated the following recycling
In the past few decades, fast-paced industrialization processes (which are regularly upgraded) at the
in the developing world has failed to keep up design stage itself:
with an efficient effluent and waste management • Ammonia and urea process condensates are
system. This disparity has worsened on account of treated in ammonia and urea plants respectively
inefficient waste management practices, inability and recycled into the process after treating them
to upgrade technology and failure to sensitize and in the demineralisation plant;
motivate citizens adequately. As a result, tens of • Turbine condensate is also recycled into the
millions of urban poor who live in neighbourhoods process after treatment in the demineralization
are exposed to hazardous pollution, as a result of plant; and
which their health and general well-being suffers. • Boiler blow down water is reused as cooling
The major concern is that despite advances in water make-up.
technology and innovative responses towards
mitigating the threats to environmental health, Beside the above measures, the effluents generated
notable deficiencies in implementation still persist, from other points like seal water of pumps, steam
and India is no exception in this regard. In fact the traps and sample cooler drains are sent to the
situation in India has worsened during the past effluent treatment plant (ETP) where they are further
decade. The lack of will and accountability among diluted by other effluent streams. ETP also receives
the industries particularly the small ones, and the treated effluents from the DM plant, filter back wash
gaps in environment laws are among the key reasons water, etc. We have also set up a sewage treatment
that environmental threats endangering human plant (STP) which treats sanitary waste-water from
health and ecosystem welfare are on the rise. the township and plant.

OuR APPROACh In the reporting year, 71 per cent of waste water
Responsible effluent Management was recycled back into the system, and the balance
We have in place elaborate policies, high technical amount was used in the irrigation network within
standards and a detailed guidance framework for the complex. We do not use freshwater for irrigation
managing effluents. In 2015-16, we continued to or horticultural purposes. During FY 2015-16, we
implement measures to achieve higher levels of used 1203088 m3 of treated effluent water for

fy fy fy Permissible
Parameter unit
2013-14 2014-15 2015-16 Limits (mg/l)

Biological Oxygen Demand mg/ltr 9.4 9.0 7.1 30

Chemical Oxygen Demand mg/ltr 34.8 37.2 38.1 250

Nitrate Nitrogen mg/ltr 7.0 7.1 7.1 10
Total Ammonical Nitrogen mg/ltr 6.5 9.2 9.4 50

Total Dissolved Solids mg/ltr 1617 1548.3 1623.4 2100

Total Kjeldahl Nitrogen mg/ltr 23.7 23.6 36.4 100

Total Suspended Solids mg/ltr 72.1 70.6 72.5 100

Table 7: Effluent discharge quality and their permissible limits

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