Industrial sludge treatment chemicals are widely utilized for purifying water in order for it to be reused. Industrial sludge is a mixture of compounds having an agricultural value and includes organic matter, nitrogen, and phosphorous, as well as pollutants such as organic pollutants, pathogens, and heavy metals. The market for industrial sludge treatment chemicals is predicted to expand exponentially in the coming years owing to a likely surge in volume of sludge due to expanding levels of industrialization in emerging economies.
Industries such as personal care, food and beverages, paper and pulp, and automotive are the major consumers of these chemicals owing to the rise in the production of sludge in these industries. There are four main types of process chemicals utilized for purifying water in the global industrial sludge treatment chemicals market, namely flocculants, coagulants, disinfectants, and other process chemicals.
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TMR, a market intelligence company, studies these process chemicals and throws light on their functioning to provide a clear picture on their utility in the overall industrial sludge treatment:
Flocculants: Flocculation is defined as a process utilized for clarification of water. It removes the color or turbidity and leaves water colorless and clear. The process of clarification takes place by inducing a precipitation in water and removal of the same with simple physical methods. To begin with, the precipitate forms very tiny particles, but after the water is stirred, the particles combine to make bigger particles. This whole process is known as flocculation. There are three main types of flocculants utilized, namely mineral flocculants, natural flocculants, and synthetic flocculants.
Coagulants: Coagulation is another significant barrier for microbiological contaminants and coagulants are thus utilized for lowering the naturally occurring turbidity and organic matter in water. The chemicals utilized as coagulants for the treatment of drinking water include iron and aluminum salts, namely aluminum sulfate, ferric sulfate, or polyaluminum chloride. At times, organic polymers, also called as coagulant aids, are utilized for assisting in coagulation. These polymers may comprise epichlorohydrin monomers or residual acrylamide.
Disinfectants: The four most commonly utilized disinfectants include chlorine dioxide, chlorine, ozone, and monochloramine. Amongst these, chlorine is the most broadly utilized disinfectant and is utilized for providing residual disinfection. Monochloramine, commonly called as chloramine, is also utilized as a residual disinfectant but monochloramine formation within water needs to be carefully controlled to impede the formation of trichloramines owing to the fact that these may cause peculiar odors and tastes in water. Ozone is also a major disinfectant utilized in drinking water.
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Other process chemicals: A wide range of other chemicals may be utilized in the treatment of water, namely sodium hydroxide for pH adjustment and various chemicals utilized in fluoridation of drinking water. To make sure that the chemicals being utilized have an appropriate quality, product specification is used. For example, WHO guidelines for drinking water quality include a distinct section on control and approval of materials and chemicals utilized in drinking water.
The prominent players in the market include BASF SE, Ashland, Inc., Kemira Oyj, GE Water & Process Technologies, and Kurita Water Industries Ltd.