China Sichuan Xinyun Jinhong Technology Co., LTD Company cases

Case study on the treatment of excessive total phosphorus in kimchi factory wastewater

Customer requirements: The daily discharge of a certain kimchi factory is 500m3, and its wastewater itself has high total phosphorus and chromaticity. The process itself can no longer meet the increasingly strict discharge standards and requirements. At present, the sewage discharge standard is P ≤ 0.5mg/L, and the factory is far from meeting the standard. The solutions provided by the company: The company's technical personnel went to the site for testing and through sample debugging, using the company's independently developed high-efficiency phosphorus removal agent to solve the problem of excessive total phosphorus, through efficient chemical and coagulation reactions. Removing total phosphorus from wastewater and reducing its color has met the relevant discharge standards and requirements, with P ≤ 0.3mg/L. Technical services and maintenance: Our technical personnel will determine the latest deployment plan based on the on-site situation, conduct on-site research and optimize the plan in a timely manner based on feedback on product usage effects. At present, the kimchi factory has been cooperating happily with the company for 3 years and has maintained a good cooperative relationship.

Total nitrogen in sewage treatment plant exceeds standard, solution for carbon source in water treatment!

Customer requirements: The daily discharge of a certain sewage treatment plant is 50000 cubic meters, and the main sources of pollution are urban sewage and industrial wastewater. Its process is FAB filter+denitrification filter. At present, the total nitrogen is relatively high, exceeding 20mg/L, while the emission standard is 15mg/L. The solutions provided by the company: The company dispatched technical personnel to conduct on-site inspections and provided a solution for adding water treatment carbon sources. Because the main method of treating sewage in this sewage treatment plant is biochemical treatment, and the core of biochemical treatment is to ensure that bacteria achieve maximum activity, which requires a C: N: P ratio of 100:5:1. However, the ratio of sewage entering a general sewage treatment plant is 80:20:3, which cannot guarantee the rapid growth and reproduction of bacteria and maintain high activity. Therefore, it is necessary to add water treatment carbon sources to achieve this optimal ratio, ensuring the growth and activity of bacteria. Final effect: After introducing the company's independently developed small molecule carbon source, the total nitrogen was reduced to below 10mg/L, and the denitrification rate was fast without affecting the effluent COD. The customer is very satisfied with our product, and we have been cooperating for 2 years now.

Hospital sewage treatment, chlorine dioxide disinfectant case!

Customer requirements: The First People's Hospital of a certain city discharges 1000 cubic meters of sewage per day. Wastewater contains a large amount of bacteria, viruses, parasite eggs, and some toxic and harmful substances, which must be disinfected before reuse. The discharge standard for Escherichia coli is 5000MPN/L, which is discharged into the urban pipeline network. The sewage from the urban pipeline network undergoes final treatment at the sewage treatment plant before being discharged. And the E. coli in hospital sewage reached hundreds of thousands of MPN/L. The solutions provided by the company: The company dispatched technical personnel to conduct on-site inspections and provided a treatment plan for adding chlorine dioxide disinfectant. Because chlorine dioxide is relatively safe, stable, and convenient, it can quickly kill pyogenic cocci, intestinal pathogenic bacteria, pathogenic yeast, and can also inactivate viruses. The use of this product has a low dosage, good stability, and can maintain continuous disinfection ability. Final effect: After using the chlorine dioxide disinfectant developed by the company, the E. coli content in the hospital reached 100MPN/L. Due to the strong service and technical capabilities of the company, we have been cooperating with the hospital for 5 years and have maintained a good cooperative relationship.

Sewage treatment plant, sodium hypochlorite disinfectant case!

Customer requirements: A sewage treatment station in a certain city discharges 30000 cubic meters of treated sewage per day. The treated water from the sewage treatment plant is directly discharged into the river ditch, achieving water recycling. The discharge standard for Escherichia coli is 500MPN/L, while the number of Escherichia coli in untreated sewage is 3000MPN/L. The solutions provided by the company: The company dispatched technical personnel to conduct on-site inspections and provided a treatment plan for adding sodium hypochlorite disinfectant. Because sodium hypochlorite has a bactericidal effect, it can kill various microorganisms including bacterial spores and fungal spores in 2-10 minutes, inactivate all viruses, and eliminate unpleasant odors in water. Final effect: After using the sodium hypochlorite disinfectant developed by the company, the E. coli content in the sewage plant reached 100MPN/L. Due to the strong service and technical capabilities of the company, we have been cooperating with the sewage treatment plant for 3 years and have maintained a good cooperative relationship.

Suining City Chengnan Second Sewage Treatment Plant

The second sewage treatment plant in the south of Suining City is affiliated with Suining Water Investment Co., Ltd. The project includes internal engineering and off-site sewage pipelines, with an estimated investment of 162 million yuan. The factory project started construction in November 2009, was completed and put into trial operation in August 2012, and officially passed the environmental protection acceptance of the project completion by the Provincial Environmental Protection Department in December 2014. The treatment process is CASS biochemical treatment+D-type filter filtration, with a design scale of treating 60000 cubic meters of urban domestic sewage per day. The designed inlet water quality is COD less than 280mg/l, BOD less than 130mg/l, SS less than 140mg/l, and the designed outlet water quality follows the Class A standard of the "Pollutant Discharge Standards for Urban Sewage Treatment Plants". The completion and operation of the project can reduce COD emissions by 4780 tons and ammonia nitrogen emissions by 457 tons annually, which is of great significance for improving the water environment quality of Peijiang and the Three Gorges Reservoir area of the Yangtze River. The water plant has been using Yiwei Phosphorus as a phosphorus removal agent since the end of October 2016, with a dosage of 30ppm liquid, and the total phosphorus in the effluent is stably controlled within 0.5. The effluent is stable and meets the standard.