Sanqin Metropolis Daily - Sanqin News (Reporter Jiang Bo) Tea trees, gardenias, camellias, iron trees, osmanthus flowers, climbing tigers, grapes... Don't think that this is just a small garden on the roof, in fact, its real identity is the sewage treatment "magic weapon" of Kaimi Technology Co., Ltd. in the Shanghai factory - the New Life Water Plant.
"Kaimi Technology" is a detergent manufacturer. Among the sewage produced by the production of detergents, the two most stubborn bad molecules are called "organic matter and surfactants", as long as they are "dried", they can turn the sewage into four types of water, so that it can be recycled.
How to solve these two "number one public enemies"? Kaimi Xinsheng Water Plant came into being, hiding all the secrets of sewage treatment in the small garden, which not only eliminated the pungent smell, but also attracted a pleasant floral fragrance.
Treating sewage is a technical activity that requires layers of filtration. The traditional sewage treatment method is to filter the surfactant by precipitation, and the other is to add flora to the sewage to decompose the organic matter, thereby reducing the cod (chemical oxygen demand) index. The secret of the NAS plant is to improve water quality by making the sewage "intimate contact" with the roots of the plant several times.
The small garden is actually an underground cistern, where flowers and plants are planted and planted, and pottery grains are used instead of soil to store water, just like hydroponic plants. The sewage generated by the enterprise every day is gathered in the reservoir of the small garden and treated in sub-districts.
"The garden is divided into several areas, some of which are responsible for water storage, some areas are responsible for transportation, and some areas are responsible for water purification, each performing its own duties." Jin Haocheng, electrical engineer of the Kaimi Science and Technology Mobility Department, said that he broke the "heavenly machine", looked carefully, and sure enough, these plants and flowers were planted in pieces, and there were gaps between blocks.
After the sewage enters the first area of the reservoir, the small garden first "transforms" into a transfer station, through the pipes in the air, responsible for transporting the sewage to the sedimentation tank and filter next door to remove surfactants. After being treated, the water "goes back the same way" and enters the bfbr ecological pool in the small garden.
The bfbr ecological pool is the most critical step in turning decay into magic. "In other areas, the roots of plants mainly play a role in purifying the water environment, but in the bfbr ecological pool, the plant roots provide nutrients for the microflora and make them more vibrant." Jin Haocheng told reporters that the decomposition of organic matter depends on the activity of the microflora, and the more active the decomposition, the more thorough it is. At the same time, the root system of plants can also absorb some organic matter, and after joining forces with the microflora, it is naturally more effective with less. "Drive away" the organic matter, the sewage is almost completed, as long as it enters the next area, the plant root system continues to purify.
After the treatment of sewage, is it up to standard? The flowers and grass planted by "Kaimi Technology" are the best answer. If the New Life Water Plant is a small garden, then the "Kaimi Technology" covering an area of 180 acres is a big garden, the greening rate of the factory area is more than 20%, and the greening of the factory area is also a landscape. All of this greenery is watered by treated sewage, "we sewage treatment is fully up to standard, and some of it is used to wash the ground, green, or flush the toilet." The company has always been adhering to the tenet of "green, ecological, healthy and low-carbon", and the products are derived from nature.
"Kaimi Technology, the daily treatment capacity of the New Life Water Plant is 500 cubic meters. In other words, even if the production line is added in the future, sewage treatment will not be worried at all.