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Beijing Qinrunze Environmental Protection Technology Co., Ltd. News

In the activated sludge process, settling performance is the final barrier determining effluent quality. SVI (Sludge Volume Index) is the most classic and widely used indicator for evaluating the settling performance of activated sludge—it helps us determine whether the sludge is "settling healthily...

April 24, 2026
TOC is one of the core indicators for measuring organic pollution in water bodies. Along with COD and BOD, it forms the "Big Three Organic Indicators" for water quality monitoring. Mastering the meaning and conversion relationship of TOC is a fundamental skill for environmental operation and ...

April 22, 2026
In our previous articles, we discussed the removal processes for ammonia nitrogen and total phosphorus, and touched upon total nitrogen while talking about carbon sources. It seems we missed the most significant indicator in effluent online monitoring: COD. A netizen from Jiangsu reminded me of this ...

April 21, 2026
This is a comprehensive technical guide on Mixed Liquor Suspended Solids (MLSS), the key parameter for monitoring the "workforce" in an aeration tank.

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April 21, 2026
Hydrolysis acidification is the pretreatment process of "chewing" large organic molecules

Thank you for your support and attention. We are committed to providing high-quality services in the environmental protection industry, making daily progress, and helping us find solutions to challenging issues in water treatment. 1. What exactly is it for? To put it simply, there are two functions: ...

April 20, 2026
Technical Requirements and Prohibitions for Reverse Osmosis Inlet Chemical Dosing

When it comes to chemical dosing for reverse osmosis (RO) systems, there are numerous field cases where improper dosing sequences have led to membrane damage. Below is a detailed guide on the correct procedures and critical precautions: 1. Oxidizing Agents Common Example: Sodium hypochlorite (NaClO)...

April 16, 2026
DTRO Wastewater Treatment Equipment

DTRO, short for Disc Tube Reverse Osmosis, is a high‑efficiency membrane technology for treating challenging wastewater. Its unique open flow channel and disc‑stack design create strong turbulence, greatly reducing fouling and clogging. It performs well with high salinity, high turbidity, and high ...

April 14, 2026
Our Company's Membrane Separation Integrated Equipment

Our company is a professional provider of integrated membrane separation equipment, dedicated to offering high-efficiency, reliable and customized water treatment solutions for various industries. We mainly supply a full range of core equipment and integrated systems, including Disk Tube Reverse ...

April 13, 2026
DTRO Wastewater Treatment Equipment

DTRO (Disc Tube Reverse Osmosis) is an advanced membrane technology tailored for high-concentration, high-fouling wastewater treatment. Unlike traditional spiral-wound RO, its core module stacks disc-shaped membranes and hydraulic discs, creating wide flow channels (2–4mm) and strong turbulence. ...

April 10, 2026
Two-Stage DTRO Wastewater Treatment Equipment for Malaysia

Malaysia, amid rapid urbanization and industrial growth, faces mounting challenges in wastewater treatment, especially for complex industrial effluents and high-concentration wastewater. The two-stage Disc Tube Reverse Osmosis (DTRO) equipment emerges as a highly efficient and reliable solution ...

April 9, 2026
Wastewater Treatment in 2026: Technologies, Trends, and Transformations

Abstract The global wastewater treatment industry is experiencing unprecedented transformation in 2026. Driven by water scarcity affecting over 2 billion people, stricter environmental regulations, and the urgent need for sustainable solutions, advanced treatment technologies are reshaping how ...

March 16, 2026
Ultrafiltration Pretreatment Technology

超滤预处理技术作为水处理领域的重大创新，因其独特的过滤性能和高效处理能力而受到业界的广泛关注。该技术的核心在于超滤膜的设计和应用，使水中的微小颗粒、胶体、细菌等杂质得以精细过滤，从而显著改善水质。在实际应用中，超滤预处理技术表现出突出的性能优势。有效去除水中悬浮物、胶体、大分子有机物，降低浊度，为后续处理工艺奠定坚实基础。此外，超滤膜的高通量特性大大提高了处理效率，降低了运营成本，并提高了经济效益。此外，超滤预处理工艺技术还表现出高度的灵活性。它可以根据不同的水质和处理要求调节过滤精度和通量，以满足各种应用场景。无论是饮用水处理、工业水处理，还是污水处理，超滤预处理工艺技术都能体现出其独特...

December 24, 2025
Comprehensive Summary of Soft Water Treatment and Soft Water Treatment Equipment Knowledge

In daily life, we often observe that the inner walls of kettles develop scale after prolonged use. Why does this happen? The reason is that the water we use contains various inorganic salts, such as calcium and magnesium salts. These salts are invisible to the naked eye in water at room temperature, ...

December 19, 2025
Wastewater Treatment Equipment for Southeast Asian Markets – Technical Specifications Optimized for Regional Needs & Environmental Standards

Optimized for Regional Needs & Environmental Standards Southeast Asia’s rapid urbanization and industrial growth have intensified wastewater management challenges, from high organic loads in tropical climates to fluctuating influent quality in coastal and inland regions. Our wastewater treatment ...

December 16, 2025
What exactly is the inorganic carbon source in wastewater treatment? Don’t underestimate its role

Colleagues in the water treatment field and newcomers to the industry, today we're going to chat about something that might seem insignificant in the wastewater treatment system but plays a crucial role—**inorganic carbon sources**. When people hear the term "carbon source," their first thought is ...

December 12, 2025
The working principle of water purification equipment is surprisingly simple! One article takes you to master the secrets of water treatment!

How does water purification equipment work? After reading this article, you will understand! Do you know what's in the water you drink every day? In addition to water, there are many other substances, some of which are beneficial, such as minerals and trace elements, while others are harmful, such ...

December 11, 2025

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