Deland is the only unit in Xinjiang that has been designated as a demonstration site for the operation of environmental protection facilities by third-party service providers under the Ministry of Environmental Protection.
Deland possesses dual-level qualifications for the operation of domestic sewage and industrial wastewater treatment facilities, as well as Class B qualifications for industrial waste gas and solid waste treatment, and automatic continuous monitoring (water and gas). The company engages in water treatment environmental protection facility operation services through a contracted operation cooperation model. With the continuous deepening of the marketization process of environmental protection work, environmental protection facility operation has gradually emerged as an emerging environmental protection service industry in China, and has become a commercial service provided by specialized environmental protection operation enterprises. Environmental protection facility operation can improve the startup rate and emission compliance rate of environmental protection equipment, leverage the professional expertise of environmental protection operation enterprises, achieve scale effects, and reduce pollution costs.
● Operation project of wastewater treatment station at GE Shanghai R&D Center
● Zero-discharge operation project for printing and dyeing wastewater treatment in Shihezi Printing and Dyeing Industrial Park, Xinjiang
● Wastewater treatment, recycling, and zero discharge project in the Chemical New Material Industrial Park of Xinshi Hezi Development Zone
● Chemical fertilizer production wastewater treatment operation project of PetroChina Tarim Oilfield Petrochemical Company
● Wastewater treatment operation project in Yili Nala Tide Grassland Scenic Area
● Water treatment operation project at Jixiang United Station of PetroChina's Zhundong Oilfield
GE China Research and Development Center (CTC) is one of the four global research and development centers of GE. Our company obtained the operation and maintenance contract for the wastewater treatment station of GE China R&D Center through bidding in November 2012. We are primarily responsible for standardized and scientific daily technical operation and management of wastewater treatment facilities such as MBR, ensuring that the facilities achieve optimal production conditions for pollution control.
The design treatment capacity of the printing and dyeing wastewater treatment and recycling operation project in the North Industrial Zone of Shihezi, Xinjiang, is 20,000 m3/d. The service scope of this printing and dyeing wastewater treatment project covers the textile industrial park and the printing and dyeing wastewater to the north of National Highway 312, east of Dongqi Road, and south of Beiyilun Road. Our company obtained the operation and maintenance contract for the printing and dyeing wastewater treatment plant through bidding in 2012. Our main responsibility is to carry out standardized and scientific daily technical operation management of the wastewater treatment facilities, ensuring that the facilities operate at their optimal production conditions.
The wastewater treatment, recycling, and zero-discharge operation project in the Shihezi Chemical New Materials Industrial Park in Xinjiang has a design treatment capacity of 30,000 cubic meters per day. This project is a major initiative to promote the industrial chain of chemical new materials in Shihezi. It provides a solid foundation for the deep processing of new material enterprises in the development zone in the future, paving the way for mainland chemical new material enterprises to grow and expand in Shihezi and even Xinjiang. It reduces the environmental impact of extending the new material industrial chain to chemical enterprises. At the same time, this wastewater treatment plant achieves zero-discharge standards and is a benchmark treatment plant in Xinjiang and even China. The company obtained the operation and maintenance contract for this wastewater treatment plant through bidding in 2015, mainly responsible for standardized and scientific maintenance and operation management of the wastewater treatment facilities, ensuring that the facilities achieve optimal reclaimed water production conditions.
The former wastewater treatment plant of Tarim Oilfield Petrochemical Company was established in 1998, with a designed treatment capacity of 400m3/h, primarily for treating emergency wastewater from oil refining units.
To meet the production needs of the large chemical fertilizer plant, the wastewater treatment plant underwent renovation in 2009, with a design capacity of 100m3/h. The wastewater treated includes production wastewater from the large chemical fertilizer plant, domestic sewage, abnormal and accident wastewater, as well as polluted rainwater and firefighting contaminated water. In 2016, the company obtained the operation and maintenance contract for the wastewater treatment plant through bidding, undertaking standardized and scientific daily technical operation and management of the wastewater treatment facilities. After two years of operation, the project has achieved a reduction in influent ammonia nitrogen from 150mg/L to less than 1mg/L in effluent, and its operational management level has ranked among the top three in the PetroChina system.
The wastewater treatment operation project in the Nalati Scenic Area of the Ili Kazakh Autonomous Prefecture has a designed treatment capacity of 1800m3/d, primarily treating domestic sewage from Nalati Town and the Nalati Scenic Area. This project is constructed and operated in alignment with national development plans and aims to create a distinctive tourist town in Nalati, promoting green environmental protection and green tourism. In 2017, our company obtained the operation and maintenance contract for this wastewater treatment plant through bidding. Our main responsibility is to conduct standardized and scientific daily technical operation and management of the wastewater treatment facilities, ensuring that the facilities operate at their optimal capacity, and truly realizing a green and environmentally friendly tourist town in Nalati.
The No.5 mine shaft in the western area of the Dananhu mining area of Hami Energy Co., Ltd., a subsidiary of Xuzhou Mining Group, is located in the eastern part of the western area of the Dananhu mining area in the Nantuha coalfield of Hami City, Xinjiang, within the territory of Dananhu Township and under the jurisdiction of Hami City. Within the minefield, there is a gravel access road that connects to the Hami-Lop Nur Highway (Provincial Highway 235) on the north side of the mining area, with a distance of 5km to the nearest point of the mining area. It is 61km north of Hami City and about 42km from the nearest residential area, Dananhu Township. It is 233km west of Shanshan. The Lanzhou-Xinjiang Railway and Lianhuo Expressway (G30), as well as the Gansu-Xinjiang Highway (National Highway 312), pass through the east and north of the mining area. The nearest distance to the Lanzhou-Xinjiang Railway is about 71km, and the nearest distance to the Lianhuo Expressway is also about 71km.
A mine water treatment station with a design capacity of 450m3/h is designed. The incoming water mainly consists of dewatering water from the No.5 mine of Danan Lake. The water treatment system also includes sewage treatment, desalination tailwater utilization, and facilities for the treatment and disposal of sludge generated during wastewater treatment, as well as a comprehensive utilization pool for concentrated brine storage. Through the construction of this mine water treatment station, on the one hand, it can reduce the adverse impact of mine drainage discharge on the surrounding environment; on the other hand, the deeply treated mine drainage can meet the water requirements of the mine itself, alleviating the current situation of water shortage in the mine. At the same time, the excess desalinated fresh water can also be exported to power plants to meet part of their water demand, reducing the extraction of regional surface water.
Zhuhai China Resources Chemical Materials Technology Co., Ltd. is a large-scale chemical fiber textile manufacturing enterprise. Its production process route involves the use of PTA and EG as the main raw materials to produce PET polyester through a continuous method. The production process is primarily a chemical reaction process. The annual production capacity of 600,000 tons of PET polyester is completed in two phases. The first phase project was completed and put into operation in May 2012, with approximately 500 m3/d of production wastewater during the production process; the second phase generates approximately 550 m3/d of wastewater during production.
A certain amount of wastewater is generated during the production process. The wastewater in this process mainly includes polyester wastewater (mainly from the continuous drainage at the bottom of the gas stripping tower of the polyester plant, with the main pollutants being ethylene glycol and acetaldehyde), production and domestic wastewater (mainly from domestic sewage and ground flushing sewage in the polyester plant, tank area, and production area, with the wastewater mainly containing ethylene glycol, acetaldehyde, trace polymer particles, and other solid and liquid impurities, as well as domestic sanitary drainage from the entire plant), and circulating water drainage wastewater (mainly from the circulating cooling water system). Among them, polyester wastewater is high-concentration organic wastewater, and the COD pollution it generates accounts for 75-85% of the total pollution, making it a key target for control and treatment.
The sewage treatment plant of the Sixth Regiment in Aral City, First Division of the Xinjiang Production and Construction Corps, primarily treats domestic sewage from the Sixth Regiment in Aral. With a treatment capacity of 2,000 cubic meters per day, the project was initiated in 2021 and completed in 2022. The sewage treatment process employs "A2/O + denitrification filter + contact disinfection technology", ensuring that the effluent quality meets the Class A standard of the "Emission Standards for Pollutants for Municipal Wastewater Treatment Plants".
The Liutuan Wastewater Treatment Plant commenced its initial commissioning and operation in May 2022, and operated up to standard until September of the same year. Due to the pandemic, the operation of the wastewater treatment plant was suspended. In winter, some equipment suffered from frost damage due to unattended operation, and the internally cultivated bacterial cultures died. Therefore, the initial operational challenges of this project lie in troubleshooting and repairing malfunctioning equipment in winter, as well as restarting bacterial culture and commissioning work. After the commissioning is qualified, the system's water intake capacity needs to be immediately expanded, and the stored water in winter needs to be treated and disposed of.
Copyright DeLan Water Technology Co., Ltd Address: No. 216 Lantian Road, North Industrial Park, High tech Zone, Urumqi City E-mail：delan@chinadelan.com
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