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How to improve TN removal rate? I summarized these three points!

How to improve TN removal rate? I summarized these three points!

AAO process, designed 15000m³/d, actual 10000m³/d. MLSS: 8000, MLVSS: 2700, water temperature: 18℃, DO: 2, internal reflux 270%(maximum), external reflux 100%. Recent influent COD: 200, BOD: 5:87, ammonia nitrogen: 27, TP: 3, TN: 40. Effluent COD: 13, BOD...

  • TN removal rate

2025-11-20
I have compiled these rules and countermeasures for abnormal changes in dissolved oxygen (DO)!

I have compiled these rules and countermeasures for abnormal changes in dissolved oxygen (DO)!

At present, most biological treatments in sewage treatment use treatment processes combined with aerobic treatment. Dissolved oxygen plays a decisive role in actual biological wastewater treatment operations. Inappropriateness or excessive fluctuations of...

  • Dissolved oxygen, DO

2025-11-20
How to calculate the sludge index (SVI)? I deduced a simple formula!

How to calculate the sludge index (SVI)? I deduced a simple formula!

I would like to ask how to calculate the sludge index? For example, SV is 92%, MISS is 9890, and what is SVI? Thank you!

  • How to calculate the sludge index (SVI)?

2025-11-20
Analysis on failures of membrane method application and reverse osmosis application in leachate treatment

Analysis on failures of membrane method application and reverse osmosis application in leachate treatment

Starting from the main functions of membrane process in the treatment of landfill leachate, this paper introduces the actual situation of two typical failure cases of reverse osmosis projects I encountered in the landfill leachate project, and puts forwar...

  • leachate treatment

2025-11-20
Leaders of various bureaus in Dayi County visited Hongtai Huarui Qingbaijiang Production Base to inspect the production of sewage treatment equipment and spoke highly of them

Leaders of various bureaus in Dayi County visited Hongtai Huarui Qingbaijiang Production Base to inspect the production of sewage treatment equipment and spoke highly of them

On the morning of May 17, 2023, leaders of various bureaus in Dayi County visited the Qingbaijiang Production Base of Hongtai Huarui Technology Group and conducted on-site inspections and guidance on the production of equipment for Dayi Sewage Treatment P...

  • Inspection of Qingbaijiang Production Base

2025-11-20
Recommended the most suitable method for treating printing and dyeing wastewater

Recommended the most suitable method for treating printing and dyeing wastewater

With the production of many industries, the environment and water pollution around us is becoming more and more serious. Many chemical compounds are directly discharged in the air and water, which indirectly affects our lives. In life, do we understand pr...

  • printing and dyeing sewage treatment

2025-11-20
There are nearly 100 million tons of sludge every year. How to turn it into valuable food and dry squeezed?

There are nearly 100 million tons of sludge every year. How to turn it into valuable food and dry squeezed?

When it comes to pollution, the first thing we think of is sewage, bad factories discharge sewage into rivers and other news, but in fact, what we have never attracted our attention is sludge. As the problem of heavy water and light mud continues to occur...

  • 100 million tons of sludge, turning waste into treasure

2025-11-20
Waste gas emissions from the textile printing and dyeing industry account for a large proportion and are highly polluting. How to deal with it has become the focus of environmental protection attention?

Waste gas emissions from the textile printing and dyeing industry account for a large proportion and are highly polluting. How to deal with it has become the focus of environmental protection attention?

Our country is a major textile country. The textile industry is generally concentrated in the five coastal provinces of Jiangsu, Zhejiang, Fujian, Guangdong, and Shandong. This industry has driven the national economy, improved people's living standards,...

  • Textile printing and dyeing, exhaust emissions, strong pollution, how to deal with it, environmental protection concerns

2025-11-20
The goal is to achieve a 40% treatment rate, and the task of rural domestic sewage treatment remains arduous.

The goal is to achieve a 40% treatment rate, and the task of rural domestic sewage treatment remains arduous.

Rural domestic sewage treatment is the focus and difficulty of the new round of rural living environment improvement and improvement actions, and it is also a proper topic in promoting the construction of beautiful rivers and lakes.

  • Goals, treatment rate, rural areas, domestic sewage, treatment

2025-11-20
What should I do if the temperature changes and floating mud appears in the sedimentation tank?

What should I do if the temperature changes and floating mud appears in the sedimentation tank?

Floating mud in secondary sedimentation tanks is common in urban sewage treatment plants and industrial wastewater treatment stations. Especially after the summer temperature rises, the floating mud situation is appalling! It seriously affects the image o...

  • Temperature, increase, secondary sedimentation tank, floating mud

2025-11-20
Environmental Protection Information

Environmental Protection Information

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Selected Recommendations

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