Guangdong Jing Technology Development Co., Ltd.* is a wholly-owned subsidiary of *Jiangsu Gian Technology Co., Ltd. (Stock Code: 300709)**, established in 2014.
The company specializes in integrated metal powder injection molding (MIM) manufacturing solutions, focusing on precision hardware components, plastic parts production, and assembly services for consumer electronics and personal care products.
The main manufacturing processes include:
Project Information
Project Scale:
25 m³/day metal grinding wastewater treatment system
Core Treatment Concept:
Source separation → Classified treatment → Resource recovery → Compliance assurance
Reuse Standard:
Reclaimed water suitable for process and production applications
Project Highlights
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Grinding is a precision machining process that uses abrasives and grinding tools to remove a thin layer of metal from a workpiece surface after precision processing.
Grinding wastewater is an important category of industrial wastewater, commonly generated from:
This type of wastewater typically contains:
Without proper treatment, direct discharge may create environmental compliance risks and increase wastewater management challenges for manufacturers.
The wastewater sources of this project mainly include:
Based on water sample analysis and pilot testing, the wastewater characteristics were identified as:
Due to the high organic load and variable pollutant composition, Baihuipu developed a customized ZLD treatment process based on wastewater classification and resource recovery principles.
Customized Treatment Flow
High-Concentration Chemical Cleaning Wastewater:
Air Flotation → Coagulation → Plate & Frame Filter Press → Combined Treatment with Washing Wastewater
Washing Wastewater:
Oil Separation Air Flotation → Coagulation → Sedimentation → Ozone Oxidation → Intermediate Water Tank → Ultrafiltration → DT-RO → Reclaimed Water Tank
Concentrated Wastewater Treatment:
DT-RO Concentrate Tank → MVR Evaporation System → Concentration & Reduction Treatment
The overall treatment strategy follows:
Wastewater Separation → Classified Treatment → Comprehensive Recovery → Discharge Risk Reduction
Based on the analysis of wastewater flow characteristics and pollutant composition, the project includes newly constructed collection systems for:
The customer transfers production wastewater into designated collection tanks or existing collection pits.
Baihuipu supplied independent lifting pump systems for these collection units, allowing wastewater to be transferred into the newly installed treatment system for centralized processing.
This design improves wastewater collection efficiency and supports stable operation of downstream treatment units.
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The main advantages of this MIM grinding wastewater ZLD system include:
1. Classified Collection & Treatment Design
Different wastewater streams are collected separately and treated according to pollutant characteristics before combined downstream processing.
2. Combined Physicochemical & Ozone Oxidation Process
The system integrates:
to address complex organic pollutants and high-concentration wastewater conditions.
3. Compact and Efficient System Structure
Compared with conventional treatment approaches, the system features:
4. High Water Recovery Performance
The system improves wastewater reuse efficiency while reducing final discharge volume, supporting sustainable manufacturing operations.
5. Flexible Hydraulic Load Design
The treatment system incorporates operational margins to accommodate production fluctuations and wastewater load variations.
6. Advanced Automation & Process Integration
The system adopts:
to support efficient wastewater management.
7. Industrial Design Optimization
The overall system layout considers:
Baihuipu’s metal grinding wastewater zero liquid discharge system combines conventional physicochemical treatment, ozone oxidation, specialized membrane separation technologies, and MVR evaporation processes to achieve efficient wastewater purification and resource recovery.
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After implementation of Baihuipu’s metal grinding wastewater ZLD system:
Through wastewater recovery, advanced concentration treatment, and resource utilization, the project minimizes production wastewater discharge and supports environmentally responsible manufacturing operations.
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