China preserves its resources

Chine - shenzhen

China is responding to its economic and social problems caused by polluted air and water imbalance between north and south. Standards are being developed and the country has already implemented strict regulations. Penalties are very high for industries in case of non-compliance with these rules. More specifically, wastewater management projects must provide for 20-25% of "re-use" in larger cities. For the solid waste industry, including toxic waste, a virtuous waste treatment circle needs to be established and include a percentage of optimization and recovery.

 

A HIGH PERFORMANCE WASTEWASTER TREATMENT PLAN

Veolia has operated a wastewater treatment plant with an initial capacity of 200,000 m3/day in Urumqi, the capital of the Xinjiang-Uighur Autonomous Region, for ten years. The challenge was to double its production capacity while providing a sludge treatment system. Veolia therefore developed a solution to increase treated volumes to 400,000 m3/day for 1.5 million people, representing slightly over a third of the city's population. In addition, the anaerobic digestion of sludge reduces its volume by 30% (2,700 m3 treated per day or 80,000 m3 per month). It also generates thermal energy to maintain the plant at the right temperature and produces 50% of the energy needed by the site, representing a capacity of 1.8 MW per day which replaces purchased electricity thus reducing the amount of coal burnt. We also chose to ensure that the site was integrated into its surrounding environment: the anaerobic digestion unit is installed in a confined space and emits no odors during sludge treatment, architectural work has been well designed and includes a white bubble with a dual security structure, water "re-use", of which 15% is used to irrigate the surrounding areas, has been introduced, and, finally, to recreate biodiversity around the site, we support the reintroduction of fauna and flora.

 

Of course, to be efficient, this cannot be done without a training program for all executive and non-executive employees. This is why Veolia developed and opened a management training center in Shanghai as well as a site (created in 2013) dedicated to industrial activities in Incheon, South Korea. 

 

 


IN INDUSTRY, THE KEY IS TO REDUCE WATER AND ENERGY CONSUMPTION

Most industrial water and energy resource conservation solutions are based on reducing consumption. We have a lot of ideas in this area and can also provide technical solutions. For water, this has resulted in the creation of optimized steam circuits and short circuits that can recycle water as upstream as possible before circulating it in a closed "re-use” loop. With regard to energy, we strive to improve the energy efficiency of facilities through supervision centers and recommend the use of biomass. More broadly, we promote energy savings in utilities, for both heating and air conditioning. Finally, we also treat pollution and toxic waste before discharge to protect the natural environment.


► Veolia and the climate