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業(yè)務(wù)領(lǐng)域
Business Scope



The company has unique insights and successful treatment experience in dealing with wastewater containing high COD, high ammonia nitrogen, high organic nitrogen, high salt content and strong biological toxicity in the energy and chemical fields such as "coal chemical industry, petrochemical industry and fine chemical industry". It can provide full-process and customized technical solutions ranging from pretreatment to advanced reuse treatment and even "zero discharge".
















The company conducts resource recovery-oriented treatment on wastewater containing suspended solids and heavy metals in the mineral resource fields such as "coal mining and non-ferrous metal mining". This approach enables the reuse of water resources and the preliminary recovery of valuable metals.

















The company adopts independent treatment routes for comprehensive wastewater containing cyanide, nickel, chromium, and refractory organic substances in other industrial fields such as "industrial park wastewater, electronic wastewater, and pharmaceutical wastewater", ensuring the wastewater can stably meet discharge standards.

















The company has independently developed the "Chengxin Global Smart Environmental Protection Cloud Platform". By leveraging IoT (Internet of Things) technology, the platform enables remote monitoring, data analysis, intelligent chemical dosing, and fault diagnosis for projects across the country. This has realized the refined and intelligent management of projects, significantly improving operational efficiency and reducing costs.








Municipal wastewater treatment, operation and maintenance


The company utilizes its patented "Denitrification Deep-Bed Filter" technology to carry out upgrading and reconstruction projects of municipal sewage treatment plants, reducing the nitrogen discharge of sewage and upgrading the sewage discharge standard from Level 1A to the local standard of Class Ⅳ surface water.
The company has a professional operation and maintenance team, and owns nearly 20 operation and maintenance projects of sewage treatment plants in multiple provinces such as Tianjin, Zhejiang, Guizhou and Hebei, with a total designed daily treatment capacity of over 2.3 million tons per day.








River regulation

Comprehensive perception, intelligent early warning, precise management and scientific decision-making are carried out for information such as hydrology, water quality, aquatic ecology and terrain of rivers.






Founded in 2008, Tianjin Chengxin Universal Energy Conservation and Environmental Protection Technology Co., Ltd. (hereinafter as “Chengxin Universal”) is a comprehensive high-tech environmental protection enterprise engaged in research and development, production, sales, technical support, engineering service and operation and maintenance management, etc. of environmental protection high-tech, process technologyand products.
   




Located in the beautiful coastal city Tianjin as its head office, the firm has set up technical center in Chicago, the US. The company has held good strategic cooperation partnership with the professional associations of the same industry such as scientific research institutions, designing institutes, college and universities all along.

產(chǎn)品&技術(shù)
Products & Tech
Denitrifying Deep Bed Filter (DDBF)

Combining denitrification with deep bed filtration, denitrifying deep bed  filter is a  treatment unit integrating biological  nitrogen removal and filtration. After the secondary sedimentation tank discharges the effluent, the model can be integrated with other treatment units perfectly, with the functions of nitrogen removal, phosphorus removal, and removal of suspended solids, etc.

Denitrification deep bed filter is especially suitable for the upgrading and reconstruction of municipal wastewater treatment plant, such as upgrading from the Grade B of Level I to Grade A of Level I, or from Grade A of Level I to IV Category of surface water.

                           

Advanced Oxidation Processes (AOP)


Advanced Catalytic Oxidation Technology (Advanced Oxidation Processes, abbreviated as AOP)

It uses a special carrier to adsorb and capture trace pollutants in sewage. At the same time, the special components on the carrier react with oxidants (ozone, chlorine dioxide) to generate a large number of free radicals with extremely strong activity (·OH). Then, through addition, substitution, electron transfer, bond breaking and other reactions, the refractory organic substances in the water body are oxidatively degraded into low-toxic or non-toxic small-molecule substances, and even directly degraded into CO? and H?O.


                 


Anaerobic Denitrification Technology (ADP, Anaerobic Denitrification Process)

It uses an anaerobic reactor to provide a habitat for denitrifying bacteria, enabling these bacteria to form a sludge bed with high concentration and high activity, thereby removing most of the nitrate nitrogen from sewage. This technology can improve denitrification efficiency, reduce the dosage of carbon sources, and decrease sludge discharge.





High-Efficiency Sedimentation Technology

High-efficiency sedimentation technology is a new type of clarifier following horizontal flow sedimentation tanks, inclined plate (tube) sedimentation tanks, and mechanical accelerated (pulse) clarifiers. It integrates the functions of chemical dosing reaction, coagulation, flocculation, sedimentation, and sludge thickening into one unit, and is divided into a chemical dosing reaction zone, a mixing zone, a flocculation zone, a sedimentation zone, and a pH adjustment zone. Through high-efficiency sedimentation technology, pollutants such as suspended solids, hardness, silicon, and fluorine in sewage can be removed.


For wastewaters from industries such as coal chemical industry, new materials, petrochemical industry, smelting and non-ferrous metals, electronics, and pharmaceuticals—which contain pollutants like high COD, high ammonia nitrogen, high organic nitrogen, high salt, cyanide, heavy metals, and refractory organic substances—the company has mature technical means including "advanced catalytic oxidation, anaerobic denitrification, and hardness & fluoride removal". It also selects appropriate pretreatment technologies based on the specific characteristics of different water qualities to effectively remove characteristic pollutants and improve the biodegradability of the wastewater.




The company has a profound understanding and rich practical experience of mainstream processes such as A2/O, two-stage A/O, improved SBR, and MBR. Especially in the treatment of high-concentration organic wastewater, the company's "pre-acidification + high-efficiency anaerobic + improved two-stage A/O" combined technology is particularly outstanding. It can effectively remove COD and achieve biological denitrification, laying a solid foundation for subsequent advanced treatment.





In the field of wastewater reuse and zero discharge, the company's integrated "ultrafiltration + reverse osmosis" dual-membrane system can produce high-quality reclaimed water, which is widely used for make-up water in circulating cooling systems and process water in production. For higher standards of "zero discharge" requirements, the company has mastered the technology chain of "hardness and silica removal + COD removal + high-efficiency reverse osmosis + MVR/multi-effect evaporation crystallization", achieving wastewater concentration and salt crystallization separation.

Through the use of new integrated high-precision detection equipment, real-time monitoring data collection of water treatment systems is carried out. The value and logical relationships of the data are fully explored to achieve intelligent control, data resource utilization, optimized management, and smart decision-making of water treatment systems. This ensures the stable operation of water plant facilities, making water plant operations more efficient, management more scientific, and services of higher quality. The detection equipment adopts a micro-spectrum chip with independent intellectual property rights, which can integrate the core components of the spectrometer at the millimeter scale. While maintaining performance, it reduces the volume of traditional spectrometers by hundreds of times. With advantages and features in terms of volume, weight, and power consumption, it is convenient to achieve in-situ and real-time online monitoring.

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