Which of the following is a chemical treatment process in context to water treatment?जल उपचार के संदर्भ में निम्नलिखित में से कौन-सी एक रासायनिक उपचार प्रक्रिया है?
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Correct answer: B. Coagulationस्कंदन (Coagulation)
Explanation
Coagulation adds chemicals such as alum or ferric salts to neutralise the charge on colloidal particles so that they clump together; it is therefore a chemical process. Sedimentation, filtration and the grit chamber all separate solids by physical means.स्कंदन में फिटकरी अथवा फेरिक लवण जैसे रसायन मिलाकर कोलॉइडी कणों का आवेश उदासीन किया जाता है जिससे वे आपस में जुड़ जाते हैं; अतः यह रासायनिक प्रक्रिया है। अवसादन, निस्यंदन तथा ग्रिट चैंबर सभी भौतिक रूप से ठोस पदार्थ अलग करते हैं।More People, Development and Environment questions
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