Removal of contaminants from wastewater or raw water to make it perfect for drinking is the process of treating wastewater for drinking use. It is done through filtration, disinfection, coagulation, zero liquid discharge, and slow sand filtration. Aquatech is the leading company providing wastewater treatment solutions.
Water desalination is the process that removes salt and other dissolved materials from water.
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The increased pressure from pollution regulatory of India – CPCB (Central Pollution Control Board) and water scarcity have led many industries to re-visit the need for greener process technologies, adopt efficient wastewater treatment systems and to strictly monitor adherence to discharge norms.
While there are various ways and methods that industries use to treat their wastewater, ZLD aims for total reuse of water resources and zero polluting discharge.Adherence to ZLDThe most important aspect for including ZLD in the wastewater treatment process, is the decreasing availability of freshwater.
It is creating a compulsion for the manufacturing industries to recycle wastewater and therefore to choose the most effective treatment of wastewater, out of scarcity.Industries are now moving towards ZLD as the preferred wastewater treatment method because of its reduced impact on the environment.
The aim of ZLD is to retain and recycle as much water as possible and produce solid waste at the end of the process.Typical course of ZLDTypical ZLD system, despite the varying recovery rate come loaded with operating costs and operational limitations.
However, there also exist customized and specialized solutions that use state-of-the-art membrane equipment such as high-recovery reverse osmosis systems to obtain specific treatment goals while achieving high water recovery rate.Another reason that makes ZLD preferable, is that it allows extraction of important resources back from the waste.
Some of the industries opt for ZLD, so that they can also trade or reuse the solids that are separated (product recovery).
The demand of water across various sectors is on the rise.
This lack of availability of water to fulfil the need makes India move towards the category of water stressed nations by 2020.
The sector estimates that 77% of industries mention easy availability of water as one of the key requirements needed for their daily operations.
This urgency in gradual shortage of availability of water for industries calls for a smart solution.
A solution that comes to the rescue of the budding industries as well as the existing ones; and which doesn’t add to the pressure on the business.
*Source – Water use in Indian Industry Survey by FICCI