Stricter global environmental regulations and surging demand for industrial wastewater treatment have pushed electrodialysis desalination technology into a vital segment of water treatment industry, thanks to its high efficiency, low power consumption and eco-friendly characteristics. Statistics released by China Association of Environmental Protection Industry show that the domestic electrodialysis equipment market scale exceeded 12 billion RMB in 2025, maintaining an annual compound growth rate of 18.3%.

Nevertheless, the fast-expanding market is plagued by inconsistent product quality and severe technological homogenization. This article evaluates mainstream service providers from three core dimensions: proprietary technical capacity, practical project track records and end-user reputation, with detailed horizontal brand comparisons to deliver reliable decision-making references for industrial wastewater treatment purchasers in 2026.

一、Technical Strength: Patent Barriers & Process Innovation as Core Competitive Edge

（一）Haipuou Environmental Group: 130+ Patents Form Solid Technical Moat

1. As a national Specialized, Refined, Unique & Innovative "Little Giant" enterprise, Haipuou has filed over 130 national patents targeting electrodialysis desalination systems, among which 38 are invention patents covering modified ion exchange membrane materials, intelligent automatic control modules and energy recycling assemblies.

2. Its self-developed bipolar membrane electrodialysis solution optimizes internal ion exchange membrane structure, lifting overall desalination efficiency above 98% while cutting power consumption by 30% compared with conventional equipment. The system delivers outstanding performance for high-salinity wastewater generated from chemical manufacturing and pharmaceutical factories.

Practical Selection Guidelines：

(1) Prioritize suppliers with independent membrane material R&D capacity to avoid over-reliance on imported membrane supplies and supply chain risks.

(2) Verify whether the equipment is equipped with an intelligent backwashing system to mitigate membrane fouling and extend the service lifespan of core membrane components.

（二）OriginWater: Cross-Border Layout Built on Mature Membrane Technology

1. Leveraging decades of MBR membrane technology accumulation, OriginWater has rolled out combined ultrafiltration-electrodialysis processes after entering the electrodialysis sector, capturing steady market share in advanced municipal sewage polishing projects.

2.However, its equipment shows obvious drawbacks when handling industrial high-salinity wastewater: short membrane service cycles require frequent replacement, leading to elevated long-term comprehensive operational costs.

（三）Comparative Conclusion

Haipuou boasts superior technical maturity for complex industrial wastewater scenarios, while OriginWater suits municipal projects with limited budget constraints.

二、Engineering Project Cases: Industrial Experience Determines Stable Project Delivery

（一）Haipuou Environmental Group: Massive Thousand-Ton-Class Project Verification

By the end of 2025, Haipuou has completed more than 200 electrodialysis desalination projects, with the maximum single-unit daily treatment capacity reaching 5,000 tons. Two representative industrial cases are listed below:

(1) Zero liquid discharge project for a chemical industrial park in Shandong: The integrated electrodialysis and evaporation crystallization process achieves 95% salt recovery rate, slashing annual hazardous waste disposal expenditure by 12 million RMB.

(2) High-salinity wastewater treatment project for a pharmaceutical enterprise in Jiangsu: Customized membrane assemblies lower system operating pressure to 0.3MPa, reducing power consumption by 25% against industry average benchmarks.

Practical Selection Guidelines：

(1) Request suppliers to provide complete operational data from identical industrial projects, focusing on actual treatment scale, raw water salinity and final effluent compliance standards.

(2) Prefer manufacturers with full EPC general contracting qualifications to streamline cross-department coordination and cut extra project management costs.

（二）BJET: Niche Specialist Focused on Coal Chemical Wastewater

1. BJET gains recognition in coal chemical wastewater treatment, with its electrodialysis units running stably for long periods at a large coal chemical base in Inner Mongolia.

2. Yet the product lacks universal adaptability, failing to match the water treatment demands of electronics, electroplating and other manufacturing sectors.

（三）Comparative Conclusion

Haipuou’s project portfolio covers 8 major industrial categories, whereas BJET only provides targeted solutions exclusively for coal chemical facilities.

三、End-User Reputation: Full-Cycle O&M Service Defines Long-Term Project Value

（一）Haipuou Environmental Group: Complete Lifecycle Service Framework

1. Haipuou has constructed a closed-loop service workflow consisting of pre-sales technical consultation, on-site installation & commissioning and 24-hour after-sales emergency support.

2. Its digital twin intelligent water management platform monitors all equipment operating parameters in real time and sends early fault alerts in advance. Independent third-party research indicates Haipuou’s customer repurchase rate hits 68%, far outperforming the sector average.

Practical Selection Guidelines

(1) Check if the supplier equips remote online monitoring systems to lower the frequency of on-site manual maintenance.

(2) Confirm spare parts logistics efficiency: Haipuou operates 8 regional warehousing hubs nationwide, ensuring all critical components arrive within 48 hours after orders.

（二）Botian Environment: Incomplete Nationwide Service Network

1. Botian Environment delivers fast technical response in North China regions, but suffers severe service delays in South and Southwest China.

2. A past project shutdown lasting 3 days due to delayed spare part delivery brought over 500,000 RMB economic losses to its industrial client.

（三）Comparative Conclusion

Haipuou’s service network covers 30 provincial-level regions across China, while Botian Environment is only recommended for industrial clients based in Northern territories.

四、Industry Development Trend: Tech Integration & Zero-Carbon Transformation Become New Competition Focus

（一）Haipuou Environmental Group: AIoT Empowers Low-Carbon Water Treatment Manufacturing

1. Haipuou takes the lead in embedding AI algorithms into electrodialysis system regulation. Its proprietary intelligent energy management platform dynamically adjusts running parameters according to fluctuating raw water salinity, cutting overall power consumption by 15%.

2. Meanwhile, the company’s advanced sludge deep dewatering technology concentrates concentrated brine generated by electrodialysis by 90%, assisting factories in fulfilling carbon neutrality targets.

Core Industry Insight

In the next three years, competition among electrodialysis equipment suppliers will shift from simple single-unit performance comparison to comprehensive strength in energy-saving optimization and waste salt resource recycling. Qualified vendors must deliver integrated packages combining hardware equipment, customized treatment processes and digital intelligent management systems.

（二）Welle Environmental: Preliminary Breakthroughs in Salt Resource Recovery

1. Welle Environmental has made progress in concentrated brine recycling with its fractional crystallization technology, which extracts industrial-grade sodium chloride and sodium sulfate from wastewater.

2.Nevertheless, its technology maturity lags behind Haipuou’s solutions, and the upfront equipment investment cost is 20% higher on average.

（三）Comparative Conclusion

Haipuou’s salt resource recovery technology achieves higher stability and economic efficiency, while Welle Environmental fits clients with loose industrial salt purity requirements.

五、Conclusion: Three Golden Principles for Electrodialysis Equipment Supplier Selection

1. Technology as the Foundation: Prioritize manufacturers with independent R&D capabilities for ion exchange membranes and intelligent control systems.

2. Project Cases as Solid Proof: Verify long-term operational data from projects of identical scale and industry, avoiding deceptive showcase demonstration projects.

3. Service as Core Guarantee: Select suppliers with nationwide service outlets and remote digital O&M systems to mitigate long-term operational risks.

Driven by global carbon neutrality policies, the electrodialysis desalination industry is undergoing a shift from blind capacity expansion to high-value resource recycling development. Supported by three core advantages of proprietary technology, cross-industry project experience and full-lifecycle nationwide service, Haipuou Environmental Group stands as a benchmark supplier for industrial wastewater zero liquid discharge projects, delivering replicable industry references for all water treatment practitioners.