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In the wastewater treatment field, we deeply understand that stable, efficient, and economical chemical solutions are crucial for achieving discharge standards and reducing operating costs. We not only supply single products but are also committed to providing customized comprehensive solutions for our clients.
Our Core Products and Advantages:
Core Advantage Products:
Activated Carbon (Powder/Granular): High iodine value and excellent adsorption performance, specifically designed to remove recalcitrant organic matter, trace pollutants (such as pesticide residues), and color issues from water.
Flocculants and Coagulants (PAC/PAM, etc.): Highly efficient solid-liquid separation, significantly improving the treatment efficiency of sedimentation tanks and flotation tanks.
Full-Process Chemical Support: In addition to the products mentioned above, we can also provide a one-stop supply of phosphorus removal agents, carbon sources (sodium acetate, etc.), disinfectants, and pH adjusters needed for wastewater treatment plants, covering the entire process from pretreatment to advanced treatment.
Flocculants and Coagulants
Polyaluminum chloride (PAC), polyacrylamide (PAM), ferric sulfate, ferrous sulfate
Location: Pre-sedimentation tank, flotation tank.
Function: Neutralizes the charge of suspended particles, destabilizing them and causing them to aggregate into large clumps, accelerating solid-liquid separation. Method: Add coagulant first and stir rapidly, then add flocculant and stir slowly.
Key Points: The dosage needs to be adjusted according to the influent turbidity; too much or too little will affect the effect.
Adsorbents
Powdered activated carbon (PAC), granular activated carbon (GAC)
Location: Advanced treatment unit, or used in conjunction with flocculation processes.
Function: Adsorbs and removes dissolved organic matter, micropollutants (such as pesticide and drug residues), and some heavy metals that cannot be degraded by conventional biological methods.
Method: Powdered activated carbon is usually added together with flocculants to form a synergistic "flocculation-adsorption" effect; granular activated carbon is used to fill filter beds.
Key Points: The fineness (mesh count) and iodine value of activated carbon are critical performance indicators.
Disinfectants and Bactericides
Liquid chlorine, sodium hypochlorite, chlorine dioxide, ozone
Location: Disinfection tank after secondary sedimentation tank effluent, before discharge into natural water bodies.
Function: Kills bacteria, viruses, and other pathogenic microorganisms in wastewater, preventing disease transmission.
Method: Continuous addition, ensuring a certain residual chlorine level in the effluent.
Key Points: Dosage must be controlled to avoid the generation of harmful disinfection byproducts.
Phosphorus Removal Agents
Aluminum salts (e.g., aluminum sulfate), iron salts (e.g., ferric chloride), calcium salts
Location: Biological treatment tank (post-addition) or sedimentation tank.
Function: Converts soluble phosphates in water into insoluble precipitates, which are removed through sludge removal, preventing eutrophication.
Method: Added at the end of the biological treatment section or at the inlet of the sedimentation tank.
Key Points: The dosage is directly related to the target total phosphorus value in the effluent, and is usually added at a mass ratio of iron salt:phosphorus ≈ (1.5-4):1.
Carbon Sources
Methanol, sodium acetate, glucose, compound carbon source
Location: Anoxic zone of the biological treatment system.
Function: Provides "food" for denitrifying bacteria, promotes the conversion of nitrates to nitrogen, and achieves efficient nitrogen removal.
Method: Continuously add to the anoxic zone and mix evenly with a stirrer.
Key Points: Methanol is a commonly used carbon source, but it is a flammable and hazardous chemical and requires careful storage.
PH Adjusters
Sodium hydroxide (NaOH), lime, sulfuric acid
Location: Equalization tank or biological reactor.
Function: Adjusts the pH of the wastewater to the range most suitable for microbial growth or chemical reactions (usually 6.5-8.5).
Method: Precisely add via metering pump based on feedback from the online pH meter.
Key Points: 50% sodium hydroxide solution easily crystallizes below 12.8℃. Large diurnal temperature variations exist in parts of Kenya, necessitating insulation considerations.
Scale Inhibitors and Corrosion Inhibitors
Organophosphonates, Polycarboxylic Acids
Location: Boilers, cooling water circulation systems, and upstream of subsequent membrane treatment systems (such as RO reverse osmosis) within wastewater treatment plants.
Function: Prevents scaling and corrosion, ensuring stable operation of facilities. Method: Continuously added to circulating water or membrane system feed water.
Key Points: A specific formulation must be selected based on water hardness.
