5 Effective Processes to Treat Wastewater

The convenience and ease gifted to us by modern lifestyle products often come with a price. One such common byproduct of it is wastewater. It is unsuitable for human use/consumption and harms the environment when left untreated. It is sourced either from household showers, washers, sewers, or runoff from wet roads and industrial washes.

Luckily, advanced wastewater treatment technologies can make the wastewater potable and usable again. It allows enterprises to meet regulatory compliance in treating wastewater environmentally. The process filters out the contaminants

Here are Five Effective Processes to Treat Wastewater

1. Thermal Evaporation/Distillation

Evaporation and distillation are separate processes that take advantage of the changing physical states of water(from liquid to vapor). In the evaporation wastewater treatment process, the water gets removed from the contaminants rather than filtering pollutants from water(like distillation).

The thermal evaporation process is the simplest form of physical vapor deposition process that removes exotic and specific contaminants from wastewater.


It is effective for concentrating or removing salts, heavy metals, and hazardous materials from wastewater. It also helps in concentrating liquid wastes before undergoing additional treatment and final disposal.


  • It is a cost-effective process compared to other physical vapor deposition (PVD) methods
  • It can be used with metals or nonmetals and also for applications using electrical contacts.
  • It is effective for materials with low melting points, such as alloys containing mercury or gallium.
  • It’s a process compatible with ion-assist sources.

CWE has three powerful evaporators

  • The 1st-generation unit –(2x) Vacom evaporator
  • The 2nd-generation unit – Niro evaporators

Both the thermal evaporators are energy-efficient and are state-of-the-art evaporative wastewater processors in Dayton/Mansfield.

2. Chemical-Batched Treatment Tanks/Cones

In the batched treatment system, a volume of wastewater is gathered together in tanks/cones. Then it is treated by chemicals to adjust the pH (acid or caustic) level of the water. Operators control the system manually (in each process step) to offer the required efficiency and flexibility(as per the need).


You can use it for treating small or discontinuously occurring wastewater flows with high pollutant concentrations in industries. It can also decontaminate and neutralize industrial wastewater with chromate, nitrite, and cyanide contaminants.


  • It treats a majority of industrial wastewater applications.
  • It does not require any hazardous chemicals to process.
  • It is easy to operate and has low operating costs.
  • It requires minimal maintenance.
  • The treated water from it can be used further as recycled.
  • The solid waste disposal contaminates from the process is safe for landfill.

3. DAF (dissolved air flotation)

It is an effective physical/chemical technology process to treat wastewater. It removes total suspended solids (TSS), biochemical oxygen demand (BOD), and oils and greases (O&G) from the household and industrial wastewater.

In it, the air gets injected under pressure into the recycle stream of clarified DAF effluent. It mixes with incoming wastewater in the form of micron-sized bubbles and attaches to the contaminants. Further, it rises to the surface and forms a floating bed of material, to be removed later by a surface skimmer.


DAF is used for pre-treating wastewater by separating suspended solids and oils/greases before discharge to a municipal sewer or bio-treatment system. It also thickens biosolids.


  • It helps industries remove contaminants like product solids, oils/ greases, heavy metals, etc., that negatively harm the biological wastewater treatment system.
  • It is effective for removing higher sludge solids contents in wastewater.
  • It is one of the best wastewater treatment processes for industries like
    • heavy equipment and machinery washdown plants
    • oil refineries
    • petrochemical and chemical plants
    • natural gas processing plants
    • general water treatment plants
    • food processing industries
    • meat and fish processing industries
    • abattoirs
    • dairies
    • tanneries

4. Breaking Water from Organics

Organic pollutants are toxic substances composed of carbon-based chemical compounds and mixes. Some of these pollutants are

  • pesticides (like DDT)
  • industrial chemicals (polychlorinated biphenyls or PCBs and hexachlorobenzene)
  • dioxins & furans that manufacturers use in various processes

Such a treatment process removes the organic pollutants from wastewater to protect the dissolved oxygen balance in streams, rivers, and lakes. The treatment of water follows various techniques like

  • Filtration process
  • Activated sludge process
  • Oxidation pond techniques

5. Biological Treatment Systems (dissolved organics)

It is a technology of using bacteria, protozoa, and other specialty microbes to treat wastewater through technologies like

  • Activated sludge
  • Biological trickling filters
  • Upflow anaerobic sludge blankets(UASBs)
  • Anaerobic digesters like covered lagoons, continuous-stirred tank reactors, etc.

The treatment occurs in 3 levels

  • Aerobic process – It’s a technique when microorganisms require oxygen to break the organic matter into carbon dioxide and microbial biomass.
  • Anaerobic process – It’s a technique when microorganisms do not require oxygen to break organic matter, often forming methane, carbon dioxide, and excess biomass.


It is used as a secondary treatment process after DAF to remove dissolved organics in the wastewater.


  • It is energy-efficient and cost-effective for the removal of BOD (Biological Oxygen Demand).
  • The aerobic process removes almost 98% of organic contaminants.
  • The anaerobic process removes 70% of organic contaminants, but it is more environmentally friendly and produces fewer bio-solids.

Currently, CWE employs one of the largest and most capable biological treatment systems in the Midwest. It services wastewater with higher ammonia or organic levels compared to others.

Why Do You Need to Treat Wastewater?

Wastewater hampers nature and disrupts the ecological balance. It risks the lives of both aquatic living beings and humans. Moreover, it’s mandatory as per EPA regulations for industries in the US.

Therefore, you must get your plant wastewater treated effectively. Engage state-of-the-art wastewater treatment, disposal, and recycling facilities to save the entire planet and its living beings.

How Can We at CWE Help?

At CWE, we apply innovation, long-term expertise, and technological prowess to meet all your wastewater treatment needs. In our wastewater treatment and management services, we treat hazardous and non-hazardous wastewaters strategically.

We specialize in treating various kinds of wastewater from chemical plants, refineries, landfills, and manufacturing facilities. We can help you attain your clean environment goals by efficiently treating your wastewater through our effective processes and cutting-edge technological systems.

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