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Beijing Qinrunze Environmental Protection Technology Co., Ltd. News

Industrial Wastewater Treatment Equipment

Industrial wastewater treatment equipment plays a vital role in modern manufacturing and environmental protection. It is specially designed to purify polluted water discharged from chemical, food, textile and other industrial processes. The equipment adopts a combined process of physical, chemical ...

May 14, 2026
Full Process of Wastewater Treatment Plant: From Influent to Discharge Standard, Step-by-Step Explanation

A modern wastewater treatment plant operates as a closed-loop water purification assembly line. Urban domestic sewage and industrial wastewater converge through pipe networks, undergo multi-stage purification, and finally turn into qualified clean water for discharge or reclaimed reuse.This article ...

May 12, 2026
Complete Analysis of 26 Classic Water Treatment Knowledge Points Basic Concepts in Water Treatment Systems: TDS, SDI, LSI, Ksp

TDS: Total Dissolved Solids, generally approximate to mineralization degree. SDI: Silt Density Index, an indicator for evaluating the effect of system pretreatment. The influent requirement for reverse osmosis (RO) units is SDI < 5. LSI: Langelier Saturation Index, used to judge the scaling tendency ...

May 11, 2026
Common Problems and Countermeasures in Operation and Management of Wastewater Treatment: Causes and Solutions of Secondary Sedimentation Tank Sludge Floating

The secondary sedimentation tank is one of the core structures of the activated sludge wastewater treatment system, undertaking the key function of mud-water separation. However, sludge floating frequently occurs in the secondary sedimentation tank during actual operation, leading to deterioration ...

May 11, 2026
Operation and Management of Anaerobic Equipment: A Comprehensive Guide from Startup to Safety

English Translation From completion of construction to stable operation, the anaerobic biological treatment system requires rigorous commissioning and start-up, meticulous daily management, and strict safety protection. Improper operation and management will not only impair treatment efficiency but ...

May 9, 2026
Activated Sludge Process in Wastewater Treatment

1. Activated Sludge It is a dense cluster of aerobic bacteria and microorganisms forming yellowish-brown flocs, specifically designed to consume pollutants in wastewater. 2. Aeration in the Aerobic Tank The blower continuously supplies air to maintain high oxygen levels in the water, ensuring the ...

April 27, 2026
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

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