Attentive citizens may have noticed that the water in the pond under the fish viewing downstairs in Cuihu Park in Kunming City is crystal clear, much clearer than before. Recently, the Cuihu Park Guanyulou graphene composite biotechnology water treatment demonstration project ended, through the use of "black technology" to treat eutrophicated water, about 2,000 cubic meters of water in the Cuihu Park Guanyulou has been crystal clear for half a year.
Under the warm winter sun, after feeding the red-headed gulls in Cuihu Park, go to the old teahouse next to the fish viewing building to order a pot of Pu'er tea, while tasting tea, twist the fish feed with two fingers, and gently sprinkle it into the water, the fish food is sprinkled, and watch the fish dance in the water, and life is not comfortable.
At multiple points in the fish viewing building, you can see the bottom of the pool. The relevant person in charge of the cooperative enterprise of the project uses two water cups, one cup to take the water in the Guanyulou pool, one cup to take the tap water, and the two cups of water are put together, and there is no obvious difference between the two cups of water in terms of color and smell. After comparison, the person in charge said: "Achieve the desired effect." ”
At this time, a staff member of Green Lake Park also wondered: "The water is clearer than before, why don't fish like to eat feed as before." In response to the staff's questions, the person in charge of the enterprise explained: "Graphene composite biotechnology can cultivate some worms that eat cyanobacteria, insects eat cyanobacteria, fish eat insects, after the formation of the biological chain, not only the water quality becomes better, the fish also have insects to eat, which naturally reduces the demand for feed." ”
The water body of Green Lake Park uses reclaimed water to improve the water quality of the water body. In May this year, Cuihu Park piloted the use of graphene composite biotechnology to purify water bodies in the eutrophication water area of Guanyulou. In the past six months, graphene composites have been combined with microbial flora, and graphene has adsorbed water pollutants and degraded some organic molecules by virtue of its huge specific surface area and certain catalytic activity. At the same time, the microbial flora survives and reproduces with graphene materials as the carrier, continuously decomposes water pollutants, and uses the organic carbon pollutants adsorbed by graphene as "food", which are jointly absorbed by aquatic organisms and fish to effectively purify water quality.
* |Metropolis Times Huashan Street.
Edit |Hu Wei strings.
Editor |Sun Xiaowu Cui Zhichao.
Final Judgment |Ye Junlin, Yang Wu.
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Kunming Wuhua released (kmwuhuafabu).