On September 10-11, 2020, the 2020 (4th) China International Coal Gasification Technology and Industry Conference was successfully held in Jincheng, Shanxi. The conference attracted more than 700 guests and representatives, more than 120 coal gasification industry experts and 65 project owners.

As a supporting unit, Hongji Environmental Protection, Deputy General Manager Mr. Liu Xuewen gave a report titled "Application of HBF and ADN Process Packages in Coal Chemical Wastewater Treatment" at the meeting, sharing Hongji Environmental Protection's experience in Experience and thoughts on clean utilization of coal chemical industry.

Coal chemical industry plays an important role in the industry. The wastewater it produces is difficult to treat. It usually contains a large amount of suspended particles, sulfide, cyanide and other harmful substances, and has the characteristics of high ammonia nitrogen and high COD.

With the requirements of my country's industrial upgrading and green development, how to efficiently and stably treat these difficult wastewaters has become an urgent issue for every coal chemical enterprise to consider.

Hongji Environmental Protection provides comprehensive solutions for the coal chemical industry, with a view to establishing environmental competitive advantages for customers and contributing Hongji wisdom to the development of green coal chemical industry.

As one of the organizers, Jinmei Group has a history of more than 60 years. It is the largest coalbed methane development and utilization enterprise in the country, an important production base of high-quality anthracite, the largest coal chemical enterprise group and the largest gas power generation company. enterprise.

Hongji Environmental Protection undertook the water supply system engineering and sewage treatment system engineering of Jinmei Huayu's methanol-based clean fuel project with an annual output of one million tons, assisting the green development of Jinmei Group.

The water supply source comes from Duhe Reservoir. Although the water quality is good, the turbidity is high.

This project mainly removes suspended solids, hardness, alkalinity, etc. from the raw water, and uses a mechanical agitation accelerated clarifier + V-shaped filter + disinfection as the raw water treatment process.

The designed water treatment capacity is 2000m?/h. The treated water enters the shared pool for production and firefighting, and is pumped to various water points in the factory through pressurized pumps.

The whole plant’s sewage comes from the domestic and laboratory sewage of the methanol plant area, gasification sewage, desulfurization and decarbonization sewage, distillation sewage, ground flushing water sewage and initial rainwater. The first-stage sewage treatment capacity is 12000m?/d .

In order to alleviate water pressure, a 75% reuse rate is required after sewage treatment, so a reclaimed water reuse system is being constructed simultaneously.

In the sewage system project, Hongji Environmental Protection used the patented technology - HBF process package to carry out efficient denitrification and remove organic pollutants in the sewage.

Hongji Environmental Protection has been deeply involved in the industrial field for many years and has served many high-quality customers including Jinmei Group and Haoyuan Group. With its own high-quality technology, Hongji continues to contribute to the treatment of industrial wastewater.

Coal-to-methanol and ethylene glycol project of Henan Zhongyuan Dahua Group Co., Ltd. The supporting water treatment projects of this project include desalted water station, sewage station, reclaimed water reuse station and coal-to-ethylene glycol Sewage station.

This project applies another core technology of Hongji Environmental Protection - ADN process package, which is a new technology developed for the treatment of high nitrate wastewater from coal to ethylene glycol.

Its advantages are:

Shandong Jinmei Minghua Methanol Project with an annual output of 600,000 tons, supporting water system projects include raw water stations, sewage stations, desalted water stations, and circulating water side filters The entire water system including the station, recycled water station and evaporation and crystallization system.

Hongji Environmental Protection has successively provided multiple water system services to Anhui Haoyuan Chemical, including the second phase sewage station of the old factory, the first phase sewage transformation of the old factory, the reuse of reclaimed water in the old factory, and the sewage station of the new plant in the park. , water reuse projects in new factories in the park, etc.

The supporting water treatment projects for this project include: 4 sets of reclaimed water reuse systems and 1 set of chemical water treatment systems.

As my country continues to strengthen environmental governance, the development of the modern coal chemical industry will pay more and more attention to environmental protection issues.

Hongji Environmental Protection will provide high-quality solutions for the development of the coal chemical industry through continuous innovation of technological achievements, and make more contributions to promoting the development of modern coal chemical industry.