Computer · Sewage Treatment
स्लज पाचन प्रणाली (sludge digestion system) को प्रभावी ढंग से कार्य करने के लिए, स्लज का pH मुख्य रूप से किस सीमा के बीच होना चाहिए?
- 14.0 - 6.0
- 210.0 - 12.0
- 36.5 - 8.0✓
- 48.0 - 10.0
सही उत्तर देखें
6.5 - 8.0
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