Design and construction of three NMP projects for more than one year, teach you how to solve it effectively?

NMP wastewater is a difficult industrial wastewater. In addition to the high concentration of organic matter, it also contains a large amount of ammonia nitrogen and total nitrogen, which directly affects the scale and treatment cost of the entire sewage treatment plant nmp solvent. In fact, this industrial wastewater will come from industries that are also popular today such as lithium battery production, NMP production, and NMP waste liquid recycling, so how to meet NMP wastewater discharge standards has become a hot topic.

In 2022, there are three situations of NMP sewage that we have been designing, building or putting into use nmp. We have rich treatment experience and can meet the discharge standards. Like, follow, bookmark, and share how to solve NMP wastewater.

An organic solvent produced by a company, one of which is NMP solvent, discharges more than 100 cubic meters of industrial wastewater per day, containing a certain amount of NMP (actually 0.3%), resulting in a very high concentration of organic nitrogen and ammonia nitrogen, and has a pungent nasal odor.

Therefore, the problem of the enterprise's NMP wastewater is to solve the high concentration of organic matter and ammonia nitrogen 1 methyl 2 pyrrolidone. Usually, we often use chemical methods, physical chemical methods and biological methods to treat industrial wastewater, and use their advantages and treatment effects on pollutants to design industrial wastewater treatment solutions. In this case, its biodegradability is still good with a COD concentration of 5000 mg/L and a TN concentration of 600 mg/L. The sewage treatment process based on biological method can remove pollutants such as organic matter, ammonia nitrogen and total nitrogen.

UASB reactor is one of the second-generation anaerobic reactor technologies. It has the advantages of high volumetric load rate, large processing capacity, low investment, small footprint, fast start-up, safe and stable operation, etc. At present, my country's current enterprise wastewater treatment can be used more, and a wide range of anaerobic biological information treatment methods (high-concentration organically bound wastewater) have been compared and studied. In the process of treating NMP wastewater, the main task of the UASB reactor is to decompose most of the organic matter in the wastewater into carbon dioxide and methane, remove most of the organic chemical pollutants, and reduce the organic system load of the students' subsequent aerobic treatment (removal of organic matter).

The A/O process is a commonly used denitrification process. It is a simple, economical and efficient biological denitrification technology. It is widely used in the treatment of high-concentration ammonia nitrogen wastewater. Most of the wastewater treated by the A/O process can greatly reduce the concentration of ammonia nitrogen. In NMP wastewater treatment, it is difficult for a single a/O process to meet the discharge standards of ammonia nitrogen, organic matter, ammonia nitrogen and other pollutants, and meet the discharge standards.

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