What percentage of total suspended solid objects is removed by primary treatment?
Solvents like benzene , carbon tetrachloride and toluene etc that are commonly used in degreasing, metal treatment baths and sludges comes under which type of list?
Smoke from kitchens, fire places and industries are the type of
Hazardous waste is a waste that is dangerous or harmful to our health or the environment .Which of the following is a hazardous waste?
Which of the following is the correct sequence in which physical treatment of waste done?
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