Rubber processing wastewater treatment equipment

Rubber processing wastewater treatment equipment

Rubber processing wastewater treatment equipmentMainly targeting the purification treatment of wastewater generated during the production process to ensure compliance with discharge standards or reuse requirements. Its processing objects include:

Main processing objects

High concentration organic wastewater

Wastewater contains organic pollutants such as rubber particles, sulfides, and fillers, with high chemical oxygen demand (COD) and biochemical oxygen demand (BOD). Therefore, biological treatment or chemical methods are needed to reduce pollution. ‌

Suspended solids and heavy metals

The concentration of suspended solids in cleaning wastewater and floor washing wastewater is high, and some process steps may introduce heavy metal ions (such as copper, lead, etc.), which need to be removed by coagulation precipitation or membrane separation technology. ‌

High salt wastewater

Some production processes, such as the use of vulcanizing agents and accelerators, generate wastewater with high salt content, which requires salt concentration and water removal through evaporative crystallization technology. ‌

Main structure of rubber processing wastewater treatment equipment:

Preprocessing system

Grille interception: using a combination of coarse/fine grilles to remove large particle impurities such as rubber debris and cloth strips from wastewater. ‌

Regulating tank: Balance water quality and quantity, adjust wastewater pH to a suitable range (usually neutral). ‌

Oil Separation Tank: Remove floating oil and reduce oil concentration through physical isolation. ‌

Coagulation sedimentation tank: Adding coagulants promotes the coagulation and sedimentation of suspended and colloidal substances. ‌

Biological processing system

Hydrolysis acidification tank: By microbial action, the BOD/COD ratio of wastewater is reduced, improving biodegradability. ‌

Contact oxidation tank: Using biofilm technology and MEM bacteria to enhance anaerobic aerobic process, it efficiently removes COD, BOD5, and ammonia nitrogen (removal rate can reach 97% -99%). ‌

Deep processing and disinfection

Disinfection device: UV or sodium hypochlorite disinfection is used to ensure that the effluent meets the discharge standards. ‌

sludge treatment

Sludge digestion tank: Stabilize sludge under aerobic/anaerobic conditions to reduce final disposal volume. ‌

Process principle of rubber processing wastewater treatment equipment:

Preprocessing stage

Iron carbon microelectrolysis method

By forming a primary battery reaction through iron carbon fillers, stable chemical bonds such as benzene rings and heterocycles are broken, breaking down large molecules into small ones, removing 30% -40% of chemical oxygen demand (COD), and improving the biodegradability index (B/C ratio above 0.25). ‌

Fenton oxidation method

Adding hydrogen peroxide and ferrous ions to generate hydroxyl radicals further decomposes residual recalcitrant substances, and after Fenton oxidation, the COD removal rate is increased by 20% -25%. ‌

Biochemical treatment stage

Hydrolytic acidification+multi-stage contact oxidation

Anaerobic microorganisms convert small molecule organic matter into easily degradable substances such as fatty acids and alcohols, increasing the B/C ratio to above 0.35. ‌

Aerobic microorganisms decompose organic matter into carbon dioxide and water through aeration, achieving a total COD removal rate of over 80%. ‌

Deep processing stage

Activated carbon adsorption

Remove residual azo dyes, antioxidants, and other recalcitrant organic compounds to ensure that the effluent COD remains stable below 100mg/L. ‌

Performance of rubber processing wastewater treatment equipment:

The main function of rubber processing wastewater treatment equipment is to remove harmful substances from wastewater through physical, chemical, or biological methods to ensure compliance with discharge standards. Its core performance is reflected in efficient processing, stable operation, and environmental friendliness

Core processing capability

Removing pollutants: The equipment can effectively reduce the chemical oxygen demand (COD), ammonia nitrogen, heavy metal ions, and organic pollutants in wastewater, and the treated water quality meets national discharge standards. ‌

Improving biodegradability: By using hydrolysis and acidification processes, large organic molecules are converted into small molecules, enhancing the efficiency of subsequent biological reactions. ‌

Efficient heat transfer and energy conservation

Tube and tube heat exchanger: When treating high-temperature wastewater, technologies such as spiral wound tube bundles and multi pass design are used, with a heat transfer coefficient of up to 12000 W/(m ² ·℃), achieving effective heat exchange between 95 ℃ high-temperature water and low-temperature water. ‌

Intelligent control: By using a double tube plate sealing system and real-time monitoring, the equipment ensures stable operation under high pressure (above 30MPa) and complex working conditions. ‌

operational stability

Low maintenance cost: The equipment structure is compact (reducing volume by 20% -30%), reducing the footprint; Intelligent systems reduce the frequency of manual intervention and lower maintenance costs by about 30% compared to traditional equipment. ‌

Corrosion resistant material: Made of 316L stainless steel or titanium alloy, suitable for high salinity and strong alkaline wastewater environments, with a service life more than three times longer than carbon steel. ‌