Waste water treatment technologies, options of Reverse osmosis treatment at home to make process cheap. Way of zero discharge in industry. Difference in bod and cod. Which form is dangerous of cr6 or cr4.

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Reverse osmosis treatment can be made cheaper at home by using low-cost membranes and energy-efficient systems.
Zero discharge in industries can be achieved through the implementation of advanced treatment technologies like membrane filtration and evaporation.
BOD (Biochemical Oxygen Demand) measures the amount of oxygen consumed by microorganisms during the decomposition of organic matter, while COD (Chemical Oxygen Demand) measures the total amount of oxygen required to oxidize both organic and inorganic compounds.
Hexavalent chromium (Cr6) is more dangerous than trivalent chromium (Cr4) as it is more toxic and carcinogenic.

Waste water treatment technologies, options of Reverse osmosis treatment at home to make process cheap. Way of zero discharge in industry. Difference in bod and cod. Which form is dangerous of cr6 or cr4.

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