Oil water separation equipment

Oil water separation equipmentCore process and equipment composition

1. Quality pre-processing unit

-Nickel containing wastewater treatment:

-Equipment: Homogenization tank (corrosion-resistant steel mixing)+Fiberglass lined concrete pool（pHcontroller+NaOHDosing system, flocculation tank（PAMDosing), nickel precipitation tank.

-Function: Through chemical precipitation（pH 9~10）Generate nickel hydroxide sludge to ensure nickel meets the standard (≤)0.05 mg/L）.

-oily/Acid alkali wastewater treatment:

-Equipment: oil separation tank (density separation), regulating tank (water quality balance).

-Function: Remove floating oil and suspended solids, and reduce subsequent loads.

-Phosphorus containing wastewater treatment:

-Equipment: Dedicated coagulation tank (adding calcium salt or aluminum salt)+Design a sedimentation tank based on the characteristics of chemical polishing wastewater.

2. Deep processing and reuse unit

-Membrane separation system:

-Ultrafiltration（UF）：PPMaterial: Hollow fiber membrane（0.1 MmPrecision), removing colloids and emulsified oil.

-Reverse osmosis（RO）: Two levelsROSystem (such as8040Type membrane module), desalination rate>95%, achieve70%Reclaimed water (conductivity ≤)30 MS/cm）.

-Biochemical treatment:

-Biological Contact Oxidation Tank: Push Flow Design+Elastic three-dimensional filler, resistant to impact loads,CODHigh removal rate and low sludge production（90Tianpai Mud1Next time).

3. End of pipe guarantee and sludge treatment

-air flotation+Sand filtration: Remove residual suspended solids to ensure compliance with emission standards.

-Sludge dewatering: Plate and frame filter press (moisture content of sludge cake)<60%）Or centrifuge, nickel containing sludge classified as hazardous waste（HW32）Disposal.

Oil water separation equipmentCharacteristics and Selection Points

1. Integrated design

-Underground structure: saves surface space, can be covered with greenery, has good insulation, and is suitable for low-temperature environments.

-Fully automatic control:PLCReal time monitoring of the systempHAdd medication, membrane pressure difference, and reduce manual intervention for fault alarms.

3. Cost and Maintenance

-Investment: Membrane system accounts for a high proportion (approximately)40%）However, reusing profits can shorten the return period.

-Operation and maintenance:UF/RORegular chemical cleaning is required, and the filling material should be cleaned regularly5Annual replacement, medication（NaOHThePACThePAM）Proportion of operating costs60%

Summary: Equipment selection suggestions

-high-nickel/High phosphorus wastewater: choose 'chemical precipitation'+Membrane concentration "combination (such as Kangzheng)DF-ROProcess) to ensure compliance with heavy metal standards.

-highCOD/Oil wastewater: biological contact oxidation+Prioritize air flotation to reduce organic load.

-Emission demand:MVREvaporation realizes the resource utilization of salt crystallization.