Baihuipu Granted Invention Patent ZL 2024 1 1328715.X for Industrial Wastewater Treatment and Recycling System with Impurity Removal Device

On 3 November 2026, the China National Intellectual Property Administration (CNIPA) issued Certificate No. 39392052 to Guangdong Baihuipu Environmental Protection & Energy-Saving Co., Ltd., granting invention patent ZL 2024 1 1328715.X for “An Industrial Wastewater Treatment and Recycling System and a Wastewater Treatment Impurity Removal Device” (一种工业废水处理回收系统及废水处理用杂质去除装置). The grant announcement number is CN 119367843 B. The application was filed on 24 September 2024, and the inventor is Yu Tingting.

Patent Details at a Glance

The table below summarises the registration information as printed on the certificate.

What the Patent Covers

The patented invention relates to a combined system that treats industrial wastewater and prepares it for recycling, together with a dedicated device for removing suspended and settled impurities from the wastewater stream. In practical terms, the design addresses a problem that appears on nearly every industrial site: the water leaving production lines carries grit, fibres, oil film, precipitated salts and other solids that interfere with downstream treatment units such as membrane systems and evaporators.

By removing these impurities in a controlled, structural way before the water reaches fine treatment stages, the system protects pumps and membranes from abrasive wear, reduces fouling frequency, and keeps the recycled water quality stable enough for return to production or for further polishing. This is the mechanical foundation on which water recycling programmes in electroplating, chemical, food processing and surface treatment plants are built.

How the Patent Fits Baihuipu's Engineering Practice

Baihuipu designs and builds complete water treatment trains, and impurity removal is the first link in almost every chain the company delivers. The patented device works upstream of the processes described in recent technical articles, including the MVR evaporator for high-salinity industrial wastewater and the zero liquid discharge boundary design for industrial effluent. In both cases, the feed water must be freed of suspended solids and precipitated impurities before concentration stages, or the evaporator surfaces scale prematurely and cleaning intervals shorten.

The same logic applies to recycling lines built around membranes. A typical train that starts with this type of impurity removal can pass clarified water to a reverse osmosis system for water recycling and ultrapure water production, where protected membranes hold their flux and rejection rates over longer service campaigns. For metal finishing plants, the device also supports the electroplating and semiconductor wastewater treatment process for heavy metal removal, because settled hydroxide flocs and metal-bearing sludge are separated from the water before polishing.

Why Invention Patents Matter for Industrial Buyers

An invention patent in China is granted only after substantive examination, during which the national intellectual property authority evaluates whether the claimed technical solution is new, involves an inventive step, and is industrially applicable. For an industrial buyer selecting a wastewater treatment supplier, a granted invention patent in the relevant process area is one verifiable indicator that the supplier owns the core mechanism it proposes to install, rather than assembling generic components around purchased know-how.

It also has a practical engineering consequence. When the patentee designs around its own granted claims, the design documents, test records and manufacturing drawings can be traced to a stable technical reference. That traceability helps when a client's audit team, or a certification body, asks how a specific impurity removal or recycling function is achieved inside the equipment being purchased.

Baihuipu's Patent Portfolio

This grant adds to a portfolio of more than twenty patented technologies covering dissolved air flotation, sedimentation structures, filtration and liquid level control devices, electrocoagulation and electrochemical catalysis systems, evaporator vapour-liquid separation components, and integrated wastewater treatment processes for specific industries such as coal mining, grinding, deinking and domestic sewage. Each patent corresponds to a mechanism that has been built into delivered projects, not a paper filing.

The company's engineering team continues to file applications in the areas where project experience shows recurring technical problems: high-salinity concentration, impurity separation before membrane and evaporation stages, and process control for stable recycled water quality.

Why Choose Baihuipu as Your Manufacturer

Guangdong Baihuipu Environmental Protection & Energy-Saving Co., Ltd. is a water treatment equipment manufacturer with about twenty years of engineering history, based in Dongguan, Guangdong. The company designs and manufactures sewage treatment plants, RO and EDI pure water systems, MVR evaporation and crystallisation equipment, and integrated recycling systems for industrial clients, with equipment delivered to more than twenty countries.

Working with Baihuipu means the process design, equipment fabrication, installation guidance and after-sales service come from one factory, and the core mechanisms are backed by granted Chinese invention patents such as ZL 2024 1 1328715.X. For project enquiries, contact the engineering team on WhatsApp: +86 13631765076.

Frequently Asked Questions

Q1: What is the number of the newly granted patent?
A: The invention patent number is ZL 2024 1 1328715.X, with grant announcement number CN 119367843 B, issued on 3 November 2026 under Certificate No. 39392052.

Q2: What does the patented system do?
A: It combines an industrial wastewater treatment and recycling system with a dedicated impurity removal device, which separates suspended and settled solids from wastewater before downstream treatment or reuse stages.

Q3: Which industries can apply this technology?
A: Typical applications include electroplating, chemical manufacturing, food processing, surface treatment and other sites where suspended impurities interfere with membrane recycling or evaporation systems.

Q4: How can a client verify the patent?
A: The patent can be checked on the official CNIPA patent search service using the number ZL 2024 1 1328715.X, and the original certificate is available for review during project discussions.