NEET BIOLOGY

Detailed explanation-1: -Sewage sludge is the solid, semisolid, or slurry residual material that is produced as a by-product of wastewater treatment processes. This residue is commonly classified as primary and secondary sludge.

Detailed explanation-2: -Once treated, sewage sludge is then dried and added to a landfill, applied to agricultural cropland as fertilizer, or bagged with other materials and marketed as “biosolid compost” for use in agriculture and landscaping.

Detailed explanation-3: -Organic or Inorganic Solids Chemists determine whether a substance is organic or inorganic based on its carbon content. The organic portion of wastewater or manure solids is the part that burns.

Detailed explanation-4: -Final answer: Biogas and sludge are products of wastewater treatment.

Detailed explanation-5: -"Biosolids” is a term often used in conjunction with reuse of sewage solids after sewage sludge treatment. Biosolids can be defined as organic wastewater solids that can be reused after stabilization processes such as anaerobic digestion and composting.