what is sludge , what is sewage why is it harmful
Answers
in the secondary treatment of effluents a solid precipitated material is produced calledSLUDGE and is used as a manure. sewage is the water waste . it contaminates the water and may result in serious infections.
Answer:
HEY MATE HERE IS YOUR ANSWER......
sewage sludge is a residual , semi solid material that is produced by product during sewage treatment of industrial or muncipal wastewater. it's causes are ---- the bacteria in water such as e-coli can effect the water and cause disease. other harmful solids and chemical in sewage can damage bodies of water that support the wildlife.fertilizers like nitrogen and phosphates , encourage algae growth , which blocks the sunlight and affects the quality of water.. hope it will helps you...... MARK ME THE BRAINLIEST....