Phase 1: End-of-pipe Wastewater Advanced Treatment and Reuse System

Heavy Metal Wastewater Treatment Unit

Raw Water → Equalization Tank → Coagulation and Sedimentation → Special Membrane Filtration → Ion Exchange Resin → Discharge to Standard/Reuse

Core Technology: Utilizes selective ion exchange resins targeting metal ions, ensuring that the concentration of heavy metal ions such as nickel and chromium is reduced to below 0.1 mg/L.

Intelligent Dosing System: Automatic and precise dosing based on online water quality monitoring, reducing reagent consumption by 35%.

Oil-Containing Wastewater Treatment and Reuse System

Oil-Containing Wastewater → Oil-Water Separator → Air Flotation Unit → Biological Treatment → Ultrafiltration → Process Reuse

Dual Membrane Process: Ultrafiltration + Reverse Osmosis combination, permeate is reused in the cleaning process, with a reuse rate of 65%.

Waste Oil Recovery: Separated waste oil is purified and used as auxiliary fuel, generating approximately US$15,000 annually.

Phase Two: Process Water System Optimization

Intelligent Cooling Water Management System

Electronic Scale Prevention + Automatic Blowdown: Replaces traditional chemical dosing, reducing reagent usage by 80%.

Online Monitoring and Automatic Control: Real-time adjustment of concentration ratio to improve cooling efficiency.

Predictive Maintenance: Scale trend warning based on water quality data.

Central Monitoring and Data Platform

Real-time data collection from 28 water quality monitoring points throughout the plant.

24-hour online monitoring of discharge outlets and integration with the environmental protection department’s data platform.

Real-time alarm and remote control functions via mobile APP.

Quantitative Results: Win-win for both environmental and economic benefits.

Environmental Compliance Results (After 12 months of operation)

Indicators Before Implementation After Implementation Improvement Scope

Wastewater Discharge Compliance Rate 78% 100% +22%

Heavy Metal Emission Concentration Exceeds Standard by 1.2-3 Times Below Limit by 50% Stable Compliance
Environmental Penalty Frequency: 3 times/year – 0 times – 100% Reduction
Online Monitoring Data Transmission Normalization Rate: 65% – 99.8% – +34.8%
Operational Efficiency and Economic Benefits
Direct Cost Savings
Cooling system energy consumption reduced by 22%, saving $147,000 in electricity costs annually
Water treatment chemical costs reduced by 68%, saving $122,000 annually
Wastewater treatment reuse rate increased to 45%, reducing fresh water procurement costs by $85,000/year

Improved Production Stability
Unplanned downtime due to cooling issues reduced by 85%
Heat exchange equipment cleaning frequency reduced from once per quarter to once per year

Improved Operating Efficiency of Key Production Lines 7%

Improved Management Efficiency

30% Optimization of Water Treatment Staffing

Automatic Generation of Environmental Reports, Reducing Manual Time by 90%

Achieving a Shift from “Reactively Responding to Inspections” to “Proactively Preventing and Managing”

Customer Testimonials

“In the past, we always viewed environmental protection investments as a ‘cost center.’ This smart water management system has completely changed our perception—it’s not only a guarantee of environmental compliance but also a driver of production efficiency improvement. The system recouped its entire investment within a year of operation, and more importantly, it allows us to focus on our core manufacturing business without worrying about environmental issues.”