Pesticide Wastewater Treatment Equipment 1-30T/h Corrosion Resistant Chemical Water Treatment System

10 t/d EO electrochemical wastewater treatment equipment, applicable to: wastewater treatment from chemical synthesis, biological source and formulation processing of pesticide production

Quick Details

Pesticide wastewater is widely recognized as one of the most challenging types to treat in the industrial wastewater sector. Its characteristics are extremely distinct: complex and diverse composition, containing a large number of highly toxic, chemically stable organic pollutants with benzene-ring or heterocyclic structures (such as various insecticides, herbicides, intermediates, etc.); COD concentration is typically very high, biodegradability is extremely poor, and the wastewater often exhibits strong inhibitory or even lethal effects on microorganisms. Furthermore, the wastewater may contain high concentrations of salts, ammonia nitrogen, as well as color and odors that are difficult to remove. These characteristics determine that traditional biological treatment processes often fail when applied to this type of wastewater, while conventional physicochemical methods suffer from issues such as incomplete treatment, high operational costs, or the generation of large amounts of hazardous sludge as secondary problems.

Addressing the aforementioned core challenges, the adoption of electrochemical advanced oxidation as the core treatment process demonstrates unique technological advantages. A key piece of equipment in this process is the CQDHX SERIES EO Electrochemical Oxidation Equipment developed and manufactured by our company. By generating highly oxidizing species, such as hydroxyl radicals (·OH), directly or indirectly on specific electrode surfaces, this equipment can indiscriminately attack and break the stable benzene-ring and heterocyclic structures within pesticide molecules, gradually decomposing them into smaller organic molecules, ultimately achieving complete mineralization (conversion into carbon dioxide, water, and inorganic salts). The greatest advantage of this process lies in its extremely high oxidation capability and environmental friendliness: the entire oxidation reaction proceeds without the addition of any chemical agents, and its reaction pathway design ensures no generation of any residual solid waste, fundamentally eliminating the disposal problem of hazardous sludge. This provides a clean and efficient technological pathway for treating highly toxic pesticide wastewater.

The wastewater undergoes conventional pretreatment, including pH adjustment, sedimentation, filtration, etc., to remove suspended solids, some colloids, and to condition the water quality, ensuring the influent stability and treatment efficiency for the subsequent electrochemical equipment. Subsequently, the wastewater enters the EC Electrochemical Equipment for treatment. At this stage, colloidal substances, some macromolecular organic compounds, phosphates, and heavy metal ions can be effectively removed from the wastewater, significantly reducing color and turbidity. This step reduces the load for subsequent deep oxidation and improves the treatability of the wastewater.

The clarified effluent from this stage then enters the deep oxidation and detoxification phase, dominated by our company's core equipment—the CQDHX SERIES EO Electrochemical Oxidation Equipment. Here, the most toxic and chemically inert organic pollutants remaining in the pesticide wastewater face the most thorough decomposition. Through optimized electrode materials, efficient flow field design, and intelligent power supply control, our company's equipment ensures the efficient and stable generation of highly oxidizing reactive species, thereby continuously and effectively degrading persistent pesticide components that are difficult to treat by conventional methods, significantly reducing their biological toxicity. This deep treatment stage is key to ensuring the effluent can safely meet discharge standards or proceed to subsequent reuse units.

Finally, the effluent, thoroughly treated by the CQDHX SERIES EO Electrochemical Oxidation Equipment, can undergo final pH adjustment and monitoring as needed to ensure all indicators stably meet stringent discharge standards.

The integrated process built around "Pretreatment + EC Electrochemical Equipment + CQDHX SERIES EO Electrochemical Oxidation Equipment" offers an excellent solution for highly toxic, refractory pesticide wastewater. This solution, particularly its core CQDHX SERIES EO Electrochemical Oxidation Equipment, with its powerful pollutant degradation capability, clean operation mode (no chemical addition, no solid waste generation), and excellent operational stability, provides solid and reliable technical equipment support for pesticide production enterprises to achieve wastewater compliance and fulfill their environmental responsibilities.

For wastewater with special characteristics or unique treatment objectives, our company's engineers provide technical support and solutions.

Technical specifications for 10 tons/day wastewater treatment capacity

Precautions:

1. The equipment must be installed in a well-ventilated, rain-sheltered, non-explosion-proof area.
2. The equipment power supply uses a three-phase five-wire system, and the equipment must be reliably grounded.
3. Do not strike the electrodes with hard objects.

Application Scope:

Wastewater from synthesis processes, product refining, equipment and floor washing, pharmaceutical processing, and wastewater from gas absorption and recycling.

The main pollutants in the wastewater include various heterocyclic compounds, DMF, DMAC, high molecular weight compounds, and various organic solvents, making the wastewater difficult to treat and highly toxic.

The wastewater is from thiram production, with the main pollutants being perchloromethyl mercaptan, chloroform, and tetrahydroimidazole, and the salt mainly being sodium chloride.

Main pollutants in wastewater: dichloromethane, toluene, ethanol, DMF, tetrahydrofuran, isopropanol, n-heptane, n-hexane, ethyl acetate, hydrochloric acid, pyridine, dioxane.

The pollution factors in the wastewater are dissolved traces of the product (phenylpyrazolone) and intermediate by-products such as acetoacetamilide compounds.

The wastewater is high-concentration cyanide-containing wastewater: the main pollutants are sodium sulfate 15.5%, sodium chloride 28.6%, sodium hydroxide 21.8%, sodium cyanide 3.5%, and enzyme 0.6%.

Pesticide Wastewater Treatment Process

Process 1

Highly toxic, refractory pesticide wastewater

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Pretreatment System (Optional)

(Improves the efficiency of the electrochemical oxidation system)

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CQDHX SERIES EO Electrochemical oxidation treatment equipment

(Highly efficient detoxification and COD degradation)

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Emission

Process 2

Highly toxic, refractory pesticide wastewater

↓

Pretreatment System (Optional)

(Improves the efficiency of the electrochemical oxidation system)

↓

EC ELECTROCHEMICAL SYSTEM

(Removal of suspended solids and degradation of COD)

↓

CQDHX SERIES EO Electrochemical oxidation treatment equipment

(Highly efficient detoxification and COD degradation)

↓

Emission

Treatment Capacity of Electrochemical Oxidation Wastewater Treatment Equipment