Wastewater is the water that has been used in homes, businesses, and industries. It contains a variety of pollutants, including human waste, food scraps, grease, and chemicals. Wastewater must be treated before it can be safely discharged back into the environment.
A variety of wastewater treatment technologies are available to address the specific challenges of different industries and applications. By carefully selecting the appropriate technologies, wastewater treatment plants can effectively remove pollutants from wastewater and protect the environment.
Defoaming and Foam Prevention
Foam can be a major problem in wastewater treatment plants, causing operational disruptions and environmental hazards. Foam can also interfere with accurate measurement and control of wastewater treatment processes. Defoamers are chemicals that are added to wastewater to prevent or control foam formation. They work by disrupting the surface tension of the water, making it more difficult for foam bubbles to form.
Flocculants and Coagulants
Flocculants and coagulants are chemicals that are used to remove suspended solids from wastewater. Flocculants work by binding to suspended solids and forming larger flocs, which are easier to settle out or filter from the water. Coagulants work by neutralizing the electrical charges of suspended solids, which causes them to clump together and form flocs.
Alkalinity and pH Control
The alkalinity and pH of wastewater must be controlled to ensure the effective operation of wastewater treatment processes. Alkalinity is the ability of wastewater to neutralize acids. pH is a measure of how acidic or basic wastewater is.
Fats, Oils, and Grease Control
Fats, oils, and grease (FOG) can cause serious problems in wastewater treatment plants. FOG can clog pipes and pumps, and interfere with the biological treatment process. FOG can also accumulate in wastewater treatment lagoons and digesters, leading to odor problems.
Phosphorus is a nutrient that can cause algae blooms in lakes and rivers. Algae blooms can deplete oxygen in the water, killing fish and other aquatic life.
Metals Recovery and Non-Metals
Metals and non-metals can be recovered from wastewater for reuse or disposal. Metals recovery technologies.
Concrete washout water is a highly alkaline wastewater that can contain high levels of suspended solids and cement. Concrete washout water can cause serious problems in wastewater treatment plants if it is not properly treated.
Odor Control for Conveyance and Sewer Systems
Odor control is important for public health and safety. Odors from conveyance and sewer systems can be caused by a variety of factors.
Mining and Mineral Processing
Wastewater from mining and mineral processing operations can contain a variety of pollutants.
Wastewater from metals fabrication operations can contain a variety of pollutants.