Sludge is a byproduct of wastewater treatment that can be divided into organic substances, pathogens, chemicals, and microorganisms. These products are said to contain toxic agents such as heavy metals, which can harm the environment and human health. This sludge was treated with the chemical at various stages before being disposed of in the environment. Food and beverage, personal care, automotive, paper, and pulp are some of the primary end-user sectors.
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