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The seven sets of sand filters in the Central Plains ethylene plant have a good quality of regular backwashing water, with the exception of suspended solids, the remaining indicators are not high. Due to the insufficient recovery capacity of the backwash water of the sand filter and the high turbidity, a large amount of backwash water is let off and cannot be utilized, resulting in a lot of waste. After the company's research decided to carry out technological transformation, and apply to the stock company.
After the sand filter backwash recovery expansion project was approved by the headquarters, the company attached great importance to this work and established a working leading group led by Wang Jiachun, deputy general manager of the company, and organized several project coordination meetings. All parties involved in the construction of scientific construction, reasonable arrangements, as much as possible shorten the construction period, high standards, high quality into this project, as soon as possible to play a role in water conservation.
The project adopts this integrated water purification process. The implementation plan includes: double the drain of the backwash water drained to the transfer pool, adding a lift pump to the existing tank of the ethylene plant, adding two lift pumps to the water gas workshop recovery pool, and sending to the recovery tank of the water and gas workshop. The water purifier's transmission line expands the pipe diameter, and the water purifier changes. At present, all major equipments of this project have been installed. The project investment is 660,000 yuan.
The project can be reused as fresh water to recycle water system after being treated appropriately with suspended solids as circulating water supplement water. It can save 17 tons of water per hour, reduce 17 tons per hour, and save nearly 200,000 yuan in water every year.
Zhongyuan Ethylene Sand Filter Backwashing Water Recycling Expansion Project
After several months of concerted efforts by all parties, the Zhongyuan Ethylene Water Saving and Emission Reduction Project - sand filter backwash recovery and reconstruction has recently been implemented in China Communications. This is an advantageous measure taken by Zhongyuan Ethylene to increase water-saving emission reduction and fully tap the potential of the plant. It is also an important measure for Zhongyuan Ethylene to be refined, to make features, and to take connotation development.