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प्रश्न
Name the methods for disposal of solid, liquid and gaseous waste.
टिप्पणी लिखिए
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उत्तर
Solid waste disposal methods: dumping, incineration, composting.
Liquid waste disposal methods: grit chamber, sedimentation, digestion and drying.
Gaseous waste disposal methods: air scrubbers and electrostatic precipitators.
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