Environment & Ecology · Environmental Engineering
Organic or chemical compounds that resist biodegradation and cannot be broken down during conventional secondary biological wastewater treatment are known as:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Retro-factories
- 2Heterogeneous compounds
- 3Halogens
- 4Refractories✓
Correct answer
Refractories
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