Dewatering Chemicals

Dewatering wastewater is the process of removing water from wastewater sludge to produce a more solid material that is easier to handle and dispose of. This is an important step in wastewater treatment, as it reduces the volume of sludge that needs to be disposed of, which can save money and reduce environmental impact.

Every mineral slurry exhibits a range of particle sizes and charge requirements. Optimum dosages can be achieved and overall performance improved by matching molecular weight and charge to the unique characteristics of the slurry.

There are a variety of dewatering methods available, but many of them require the use of chemicals to improve the performance of the process.

Chemicals

Coagulants

Coagulants for wastewater treatment play a vital role in the process, allowing for solids removal and dewatering, water clarification, lime softening, and sludge thickening.

Flocculants

We offer high-quality dry-powder water treatment flocculants that exhibit consistent quality and high active polymer content. Our proprietary sieving process serves to eliminate many dust fines and reduce human exposure and slippery residue in the makedown area.

The most common dewatering chemicals are:

Coagulants: Coagulants are chemicals that neutralize the electrical charges on suspended solids in wastewater, causing them to clump together. This makes it easier to remove the solids from the water. Common coagulants used in wastewater treatment include alum, ferric chloride, and polyaluminum chloride (PAC).
Flocculants: Flocculants are chemicals that bind to the clumps of solids formed by coagulants, making them larger and heavier. This makes them easier to settle out of the water or remove using other dewatering methods. Common flocculants used in wastewater treatment include polyacrylamide (PAM) and chitosan.

The specific chemicals used for dewatering wastewater will vary depending on the type of wastewater being treated, the dewatering method being used, and the desired results. It is important to carefully select the right chemicals and to use them in the correct dosage to achieve the best results.

Benefits Of Using Dewatering Wastewater Chemicals

There are a number of benefits to using dewatering wastewater chemicals, including:

Improved dewatering performance: Dewatering wastewater chemicals can help to improve the performance of dewatering processes by making it easier to remove solids from the water and by reducing the amount of water in the dewatered sludge. This can lead to smaller and more efficient dewatering equipment, as well as lower operating and maintenance costs.
Reduced sludge volume: Dewatering wastewater chemicals can help to reduce the volume of sludge that needs to be disposed of. This can save money on transportation and disposal costs, and it can also reduce the environmental impact of wastewater treatment.
Improved sludge quality: Dewatering wastewater chemicals can help to improve the quality of the dewatered sludge. This can make it easier to handle and dispose of the sludge, and it can also make it more suitable for beneficial reuse applications, such as land application or composting.

Selection And Use Of Dewatering Wastewater Chemicals

When selecting dewatering wastewater chemicals, it is important to consider the following factors:

Type of wastewater: The type of wastewater being treated will affect the type of chemicals that are most effective. For example, wastewater from industrial sources may require different chemicals than wastewater from municipal sources.
Dewatering method: The dewatering method being used will also affect the type of chemicals that are needed. For example, filter presses and vacuum filters typically require different filter aids than belt presses and centrifuges.
Desired results: The desired results of the dewatering process will also affect the type of chemicals that are used. For example, if the goal is to produce a dewatered sludge with a high solids content, different chemicals may be needed than if the goal is to produce a dewatered sludge that is easy to handle and dispose of.

Once the appropriate chemicals have been selected, it is important to use them in the correct dosage. Overdosing chemicals can be costly and can also lead to environmental problems. Under dosing chemicals can reduce the effectiveness of the dewatering process.

It is important to consult with a qualified wastewater treatment professional to select the right dewatering wastewater chemicals for your needs and to ensure that they are used in the correct dosage. Contact ChemREADY to ensure that you are receiving effecting and cost efficient treatment.