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Beijing Qinrunze Environmental Protection Technology Co., Ltd. News

【 Dry goods 】 The impact of difficult to degrade organic matter on activated sludge systems!

The impact on microorganisms in activated sludge -Inhibition of microbial activity: Difficult to degrade organic compounds such as phenols and polycyclic aromatic hydrocarbons can inhibit the activity of enzymes in microbial cells in activated sludge, leading to inhibition of physiological ...

February 6, 2025
Analysis of Long term Overloading Operation Problems in Sewage Treatment Plants!

Recently, the long-term overloaded operation of sewage treatment plants in some cities has attracted widespread attention. If a sewage treatment plant operates at full capacity or overload for a long time, it is easy to cause domestic sewage overflow pollution problems. So, what are the reasons ...

February 5, 2025
Summary of management skills during the shutdown of reverse osmosis equipment

Reverse osmosis equipment is a water treatment device that uses a high-pressure pump to separate water molecules from a solution, and is widely used in industrial, medical, drinking, and other fields. The advantage of reverse osmosis equipment is that it can effectively remove impurities such as ...

January 23, 2025
Summary of Treatment Methods for Garbage Leachate Wastewater

Characteristics of leachate from garbage Leachate from garbage refers to the wastewater generated during the stacking and landfill process due to fermentation, precipitation leaching, surface water and groundwater infiltration. The composition of leachate from garbage is influenced by factors such ...

January 22, 2025
Reasons and treatment measures for the floating of high-density tank sludge

1、 Formation of floc flotation 1. The algae content in the raw water is relatively high The organic matter produced by algal metabolism has an impact on flocculation and filtration, because acidic substances in the organic matter react with the hydrolysis products of coagulants (iron or aluminum ...

January 16, 2025
Reasons and treatment measures for the floating of high-density tank sludge

1、 Formation of floc flotation 1. The algae content in the raw water is relatively high The organic matter produced by algal metabolism has an impact on flocculation and filtration, because acidic substances in the organic matter react with the hydrolysis products of coagulants (iron or aluminum ...

January 15, 2025
Do you know how many levels sewage treatment is divided into?

Experts introduce that sewage treatment is divided into three levels, and the water quality effect achieved after different levels of treatment is different. It is necessary to design a reasonable treatment plan according to the needs of users. Primary treatment of sewage: Primary treatment of ...

January 14, 2025
On the generation and avoidance of back pressure in reverse osmosis

In the field of reverse osmosis water treatment, back pressure refers to the situation where the pressure on the product water side is greater than the pressure on the feed water side. The roll type membrane element is similar to a long envelope shaped membrane pocket, with the open side bonded to ...

January 13, 2025
Technical Disclosure of BAF Aerated Biological Filter Installation

1. Communication and coordination with affiliated units before installation: -Contact engineering design units, construction and other equipment installation parties to communicate the construction sequence, installation technical parameters, requirements and precautions, ensuring installation ...

January 11, 2025
Summary of 75 Common Issues in Environmental Impact Assessment and Pollutant Discharge Permits

1. Which construction projects and activities require environmental impact assessment procedures? Answer: According to Article 16 of the Environmental Impact Assessment Law of the People's Republic of China, "The state implements classified management of the environmental impact assessment of ...

January 7, 2025
What are raw water, softened water, desalinated water, pure water, and ultrapure water

Raw water refers to untreated water. Generally speaking, the water before entering the water treatment process is also referred to as the raw water of the water treatment process. For example, the water sent from the water source to the clarification tank for treatment is called raw water. Softened ...

January 6, 2025
Case study of waste gas treatment in petrochemical wastewater treatment plant

China's oil fields are widely distributed, covering various coastal areas in Northeast, North China, Central South, Southwest, Central China, and Southeast China. At present, most oil fields have entered the middle and late stages of oil extraction, and the water content of the extracted crude oil ...

January 4, 2025
How to use the new RO reverse osmosis membrane correctly?

The key technical points for using a new RO reverse osmosis membrane are: 1. First, rinse the quartz sand and coconut shell activated carbon clean. Rinse the newly installed quartz sand and coconut shell activated carbon for a longer period of time. 2. Check for residual chlorine. If there is ...

January 3, 2025
Essential and commonly used rapid detection test strips and reagent kits in water treatment

During the production process, sometimes equipment may detect fluctuations or rapid increases in data, and manual analysis is obviously too slow. So with quick detection test strips and reagent kits, it is possible to quickly strengthen the judgment, although the specific values are not known, at ...

January 2, 2025
Introduction to commonly used types of fans in sewage treatment!

Which type of Roots blower is good for sewage treatment? Roots blower is an important equipment machinery in the environmental protection industry. We all know that the role of Roots blower in sewage treatment is to increase oxygen for biochemical aerobic bacteria, ensure their living environment, ...

December 30, 2024
Detailed explanation of hydraulic retention time (HRT)!

Hydraulic retention time (HRT), interpreted in written language, refers to the average residence time of wastewater within a treatment structure. Simply put, it refers to the time it takes for wastewater to enter and exit a treatment facility. The usual calculation method is to divide the effective ...

December 28, 2024

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