What Is Wastewater Disinfection?

What Is Wastewater Disinfection?

WASTEWATER DISINFECTION There are a number of chemicals and processes that will disinfect wastewater, but none are universally applicable Disinfection can be attained by means of physical or chemical disinfectants. The agents also remove organic contaminants from water, which serve as nutrients or shelters for microorganisms. Disinfectants should not only kill microorganisms. Disinfectants must also have a residual effect, which means that they remain active in the water after disinfection. A disinfectant should prevent pathogenic microorganisms from growing in the plumbing after disinfection, causing the water to be recontaminated. For chemical disinfection of water the following disinfectants can be used: - Chlorine (Cl2) - Chlorine dioxide (ClO2) - Bromine chloride (BrCl) - Alcohols - Soaps and detergents - Hydrogen peroxide - Several acids and bases physical disinfection of water the following disinfectants can be used: - Ultraviolet light (UV) - Electronic radiation - Gamma rays - Sounds - Heat Wastewater Disinfection Surface waters have been the focal point of water disinfection regulations since their inception, as groundwaters (like wells) have been historically considered...
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What chemicals are used in an Effluent Treatment Plant?

What chemicals are used in an Effluent Treatment Plant?

What chemicals are used in an Effluent Treatment Plant? One form of wastewater treatment is to use an Effluent Treatment Plant; this method is used to purify industrial wastewater for its reuse and safe release into the environment. Industrial effluents contain various materials depending on the industry.  One of the main contributing factors to Industrial wastewater charges are the quantity of Chemical Oxygen Demand (COD) and Suspended Solids (SS) present in the effluent. Some effluents contain oils and grease, and some contain toxic materials (e.g. Cyanide). Effluents from food and drink factories contain degradable organic pollutants whilst effluents from metal plating factories contain inorganic pollutants.  This means that all effluents and wastewater streams are different and contain a diversity of impurities and therefore site-specific chemical treatment is needed. The Effluent Treatment Plant needed for each process can greatly vary as every effluent behaves differently.  Effluent that naturally floats will require chemicals and equipment that aids this, e.g. DAF plant. Conversely, Effluent that...
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Sludge Dewatering

Sludge dewatering is the process of removing water from the sludge i.e. generated by DAF or clarification. The sludge produced from a DAF or clarifier will often still contain a large amount of water, this means that significant amount of storage area your sludge holding tank is now full of water that could go to sewer. This water along with the sludge is typically pumped away from the site in tankers at significant cost to your business. GPC’s high molecular weight flocculants in conjunction with a screw press can greatly increase the efficiency of the treatment process, often eliminating the need for tankers saving your business thousands of pounds a year as well as reducing your carbon footprint!* The use of an organic primary coagulant in conjunction with a flocculent can greatly enhance the results given on a belt press or plate and frame press. Sludge dewatering is effective for recycling water and the process will also reduce disposal costs. Key Benefits Reducing your carbon footprint. You can reduce your carbon footprint with sludge dewatering. Transport accounts...
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