How to Disposal of effluents from CEPT?
Water shortage affects around 80 nations and 40% of the world's population, and demand for water increases every two decades. Despite restrictions on the direct use of freshwater in every category of industry, approximately 500 billion cubic meters of fresh water are used, annually in India for industrial activities, including approximately 10 billion cubic meters by processing industries, and 30 million cubic meters for refrigeration purposes.
According to research, small and medium-sized industries are the biggest contributors to water contamination. Thermal power plants, pulp and paper, textile, steel, sugar, fertilizer, heavy engineering, and other industries release, almost 30,729 m3 of wastewater yearly. This equates to 76.8% of fresh water being converted to effluent, which eventually ends up in natural water bodies. As a result, the necessity for CETP installation grows, which eventually, leads to disposal of effluents from Common Effluent treatment plants.
Main aim of CETPs
Many Small Scale Industries (SSI) are unable to set up treatment systems on their own; therefore, the concept of CETPs (Common Effluent Treatment Plants) is intended to assist such industries, in treating their effluent before disposal, whether it is in a stream, on land, or in rivers.
The main goal of the CETP is thus to minimize the treatment costs, incurred by an individual member unit, while safeguarding the water environment as much as possible.
Disposal of effluents from CETPs
The following are the disposal options for treated effluent from a CETP:
· Surface bodies of water,
· On agricultural lands,
· Outfall from the sea,
· Public sewage systems.
The cost-effective disposal solution is determined by the local characteristics, terrain, and so on of a specific place. There are treated effluent criteria for each disposal option, such as release into surface water bodies, on-land treatment, and marine disposal.
Disposal of Sludge
Obtaining CETP sludge for agricultural use is only permissible, if it is devoid of harmful elements. Because of its contents, primary sludge falls under the scope of regulatory rules for proper disposal. As long as the concentrations of the elements are within acceptable levels, secondary sludge from biological treatment might be used as manure, particularly for dry land or forest disposal at regulated rates. This must be explored case by case and with the approval of the regulatory agencies.
To lower the amount of sludge, both main and secondary sludge must be dewatered.Any sludge suspected of still having hazardous material shall be disposed of, in suitable TSDF following necessary analysis and, if necessary, stabilization before land disposal.
The common effluent treatment plant (CETP) not only assists the industry in better pollution management, but it also serves as a step towards a cleaner environment, and a service to society as a whole. Because small-sized enterprises cannot benefit from economies of scale, the burden of installing pollution-control equipment falls disproportionately on them.
The concept of common treatment, based on feasibility, should be included as an essential component of infrastructure, in new industrial estates. In fact, the location of industries should always be such that, units with compatible natures of activity are located in a cluster, which can facilitate providing common treatment.
Treatment of effluents is crucial, but so is the safe disposal of effluents, which is achieved by CETPs.
Summarizing, Netsol Water is a well-known industry name,offering a wide range of CETP systems in India. We are a producer, exporter, and supplier of common effluent treatment plants in every industry of India.