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Types of Industrial Wastewater Treatment

Like many byproducts of production, industrial wastewater must be treated before recycling or recirculation takes place. Industrial wastewater can be treated in a number of ways, depending on the water quality and its future destination.

Why Treat It?

Industrial processes account for 22 percent of worldwide water consumption. Treatment and water reuse reduces the need for water removal from natural supplies. Industrial wastewater treatment systems have an initial cost for purchase and setup, but they can help you can save on water consumption. Also, reusing water instead of expelling it reduces wear on plumbing and sewer systems, and limits harmful components from polluting the environment, which could result in major fines on the business. The following methods are commonly incorporated into treatment systems.

Oil and Grease Removal

Wastewater from industries involving oil, gas and chemical processing necessitate oil and grease removal in the form of skimming machines as the first step in the treatment process. Wastewater enters a tank heated in order to keep oil and grease in liquid form. Unwanted material rises to the surface where the skimmer removes the top layer of grease. At the bottom of the tank, sludge is pumped out for further treatment.

Brine Treatment

Water with high saline levels receives brine treatment to reduce the number of dissolved salt ions contained in the supply. This type of industrial wastewater treatment is normally needed for water used in cooling towers, natural gas extractions, hydraulic fracturing, and food and beverage manufacturing byproducts.

Lowering the brine content is important for water intended for future use or to simply reduce the overall water supply volume. The overall approach to this treatment method may involve many different tactics, including membrane filtration or evaporative techniques. 

Organic Material Removal

Treating industrial wastewater from food processing plants involves removing biodegradable organic materials. First, the activated sludge method utilizes oxygen to break down the organic particles. The water flows into a chamber where air is injected and evenly distributed throughout the wastewater. Afterward, the water moves to a settling tank, sometimes called a clarifier. The organic material separates and turns into sludge, which drifts to the bottom of the tank to be removed and treated further. The treated water moves on to the next step in the process, if needed.

A second method, called trickling filter, also is used to break down and remove organic material. Wastewater flows over a surface composed of rocks or peat moss, covered by a layer of microbial slime. Air is pumped through the bed as the wastewater flows across, and organic matter is removed as sludge, transported for treatment elsewhere.

Innovative Water Treatment is a leader in constructing innovative purification systems – contact their team today for a consultation involving your business’ needs and preferences when it comes to industrial wastewater treatment.

1 Comment

Taylor - December 28th, 2020 at 8:33am

I like how you mentioned having organic material removed. My brother should find a wastewater treatment for his industrial factory. He should find the right plant to help his factory.