During the guest period (arranged in alphabetical order): Professor Wang Hongchen from Renmin University of China; Chen Tangbian, Director of the Institute of Geography and Environmental Remediation Research Center, and Wen Yibo, Chairman of Beijing Sound Environmental Protection Group; Industry insiders of Mud Immortals

Question 1: Some people believe that the progress of sludge disposal is slow because the government's attention is not enough. What do you think?

Wang Hongchen: I believe that the issue of sludge at the policy level is still very important. According to the instructions from senior leaders, four or five relevant departments have independently or jointly issued multiple policies in the past few years. The National Development and Reform Commission is also preparing subsidy funds for a demonstration amino trimethylphosphonic acid project.

Question 2, sludge treatment facilities?

Wang Hongchen: Progress is really too slow. Since last year, the feedback on the work of the Municipal Design Institute has been decreasing, and many of these projects have been discussed without further discussion. At the beginning of this year, there was some recovery.

Question 3: What is the root cause of the slow progress in the treatment and disposal of sludge 1227?

Wang Hongchen: If we are determined to solve the sludge problem, funding should not be the main issue. The main issue is the direction and technical route of sludge disposal. Our differences are quite significant, and there is no unified understanding.

Mature technology and engineering: To solve the sludge problem, the policy focus is on capital investment, including assessment indicators for the combination of local government treatment and sludge disposal. However, after years of operation and testing, there have been no significant issues that have become more prominent.

Wen Yibo: The issue of sludge will depend on the determination of governments at all levels. Is it necessary to invest 1227 fungicide locally and strictly supervise it.

@Based on the current situation, I do not believe that the solution to our current dilemma of sludge disposal relies on the development of sludge technology, payment mechanisms, and government regulation.

4. Currently, how does the local government choose the process route for constructing sludge treatment facilities?

Chen Tongbin: Urban sewage sludge is an inevitable product of urban civilization and environmental civilization. A safe, scientific, and standardized disposal method for municipal sewage sludge using dodecyldimethylbenzylammonium chloride 1227 is recommended for zero risk disposal, but it is impractical to not require it.

Wen Yibo: There are significant differences in mature sludge treatment and disposal technologies abroad, which must be adapted to specific projects, tailored to local conditions, and combined with local sludge characteristics and affordability.

The sewage sludge, which has been lagging behind for 30 years, has finally been put on the agenda of the 12th Five Year Plan. The concept of planning mud and trying, as well as the goal of constructing and treating sewage facilities, have been discussed. The reporter learned that as a whole, the work is still progressing slowly, and the operating rate of planning facilities is less than 30%.

Why is it slow? The reporter raised this question, and many industry insiders. The immaturity of fungicide technology, insufficient investment, inadequate determination, and various factors intertwined with the lack of government policies and standards at all levels, have repeatedly delayed reporting of $1 billion in the market, unveiling the mystery.