Environment degradation can be checked by _______________________.
Environmental degradation is the process of polluting natural environment. Different methods are being followed to conserve nature. Some of them include:
(i) minimising use water for processing by reusing and recycling it in two or more successive stages
(ii) harvesting of rainwater to meet water requirements
(iii) treating hot water and effluents before releasing them in rivers and ponds. Treatment of industrial effluents can be done in three phases
(a) Primary treatment by mechanical means. This involves screening, grinding, flocculation and sedimentation.
(b) Secondary treatment by the biological process.
(c) Tertiary treatment by biological, chemical and physical processes. This involves recycling of wastewater.