Indonesia Metal Surface Treatment Wastewater Treatment Project

Low-Temperature Evaporation System for Near-Zero Liquid Discharge and Water Recovery

Project Location: Indonesia

Industry: Metal Finishing / Surface Treatment

Application: Industrial Wastewater Treatment

Treatment Technology: Low-Temperature Evaporation

Main Objectives: Wastewater Treatment, Water Recovery & Near-Zero Liquid Discharge

Equipment: Integrated Low-Temperature Evaporation System

Project Background

Metal surface treatment processes such as electroplating, acid pickling, phosphating, and anodizing can generate highly contaminated and corrosive industrial wastewater.

For this Indonesian project, We supplied a customized low-temperature evaporation wastewater treatment system designed for the customer's surface treatment wastewater. The solution was developed to support wastewater treatment, water recovery, reduced liquid discharge, and efficient use of the customer's existing factory space.

Customer's Wastewater Treatment Challenges

The customer required a reliable treatment solution suitable for the operating conditions of a metal surface treatment factory.

The main requirements included:

Treatment of wastewater generated from surface treatment processes

Water recovery for suitable production reuse

A treatment approach supporting near-zero liquid discharge

Compact equipment suitable for the existing factory layout

Corrosion-resistant equipment for acidic, alkaline and other corrosive wastewater conditions

Because wastewater characteristics and production conditions can vary between factories, the treatment system was configured according to the customer's actual wastewater volume and operating requirements.

Our Solution

Integrated Low-Temperature Evaporation Wastewater Treatment System

We supplied an integrated low-temperature evaporation system using vacuum and low-temperature operating conditions.

The system combines a low-temperature evaporator, heat pump and heat-exchange unit, vacuum system, condensation and water recovery module, and automatic wastewater circulation system into an integrated treatment package.

During the treatment process, wastewater is evaporated under low-temperature vacuum conditions. The generated vapor is condensed to recover water, while the remaining wastewater is concentrated. The recovered water can be reused in suitable production processes according to its quality and the customer's requirements.

Treatment Process

Surface Treatment Wastewater

↓

Wastewater Collection & Circulation

↓

Low-Temperature Evaporation

↓

Vapor Condensation

↓

Recovered Water

↓

Production Reuse / Further Treatment

↓

Concentrated Wastewater

The final treatment configuration can be customized according to wastewater characteristics, flow rate, and project treatment objectives.

Key Features of the System

1. Compact Skid-Mounted Design

The complete system adopts an integrated skid-mounted configuration. The compact layout helps reduce equipment footprint and simplify installation, making it suitable for factories with limited available space.

2. Low-Temperature Evaporation Technology

The system operates under vacuum and low-temperature conditions. The evaporation process is designed for continuous industrial wastewater treatment and can support automated operation for factories with continuous production requirements.

3. Water Recovery and Near-Zero Liquid Discharge

The system uses evaporation and condensation to recover water from industrial wastewater. The recovered water can be returned to suitable production processes, helping reduce fresh water consumption while supporting a near-zero liquid discharge approach.

4. Automatic PLC Control

An intelligent PLC control system supports automatic start and stop, process adjustment, and real-time monitoring of equipment operating conditions. A remote cloud service platform is also available for intelligent control configurations.

5. Corrosion-Resistant Materials

The wastewater-contacting components are manufactured using high-strength corrosion-resistant materials selected for acidic, alkaline, and corrosive wastewater conditions commonly associated with metal surface treatment processes.

Solution Highlights

Compact skid-mounted design
Low-temperature evaporation
Water recovery
Near-zero liquid discharge approach
PLC automatic control
Corrosion-resistant materials

This project demonstrates how an integrated low-temperature evaporation system can be customized for industrial wastewater applications where water recovery, reduced liquid discharge, compact installation, and automated operation are important considerations.

By integrating the evaporation, heat pump, vacuum, condensation, water recovery, circulation, and PLC control modules into one treatment system, the solution provides a compact and automated approach for surface treatment wastewater management.

For metal finishing and surface treatment factories, the appropriate treatment process should always be selected according to actual wastewater characteristics, flow rate, treatment objectives, and local requirements.

Looking for a Metal Surface Treatment Wastewater Treatment System?

We design and manufacture customized industrial wastewater treatment equipment for electroplating, metal finishing, acid pickling, phosphating, anodizing, and other surface treatment applications.

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