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Question

Which of the given statements is/are correct w.r.t. sewage treatment?

दिया गया कौनसा/दिए गए कौनसे कथन वाहितमल उपचार के संदर्भ में सही है/हैं?

A
Primary sludge is produced during physical treatment

प्राथमिक आपंक भौतिक उपचार के दौरान उत्पन्न होता है
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B
Flocs are produced during secondary treatment

ऊर्णक, द्वितीयक उपचार के दौरान उत्पन्न होते हैं
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C
Activated sludge contains bacterial flocs

सक्रियत आपंक में जीवाण्विक ऊर्णक होते हैं
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D
Effluent from primary treatment plant is generally released into river

प्राथमिक उपचार संयंत्र से होने वाला बहिःस्त्राव सामान्यतः नदी में मुक्त होता है
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Solution

The correct option is C Activated sludge contains bacterial flocs

सक्रियत आपंक में जीवाण्विक ऊर्णक होते हैं
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