3results about How to "Achieve integrated removal" patented technology

The invention belongs to the technical field of microorganisms and environmental governance and repair, and particularly relates to an ammonia nitrogen assimilation bacterium and application thereof. Specifically, research finds that the strain can metabolize ammonia nitrogen in an assimilation mode, nitrate and nitrite are not generated, nitrogen loss is not generated, and integrated removal of carbon, nitrogen and phosphorus nutrient substances can be achieved. Meanwhile, the strain has wider range of environmental adaptability, can effectively degrade ammonia nitrogen through a nitrogen assimilation approach even under the conditions of high salinity, low temperature and high ammonia nitrogen concentration, is simple to operate, low in price and environment-friendly, and shows that the nitrogen-containing wastewater is treated through the nitrogen assimilation approach, so that the nitrogen-containing wastewater treatment efficiency is greatly improved. The method not only can better recycle wastewater resources, but also has very good prospects in the aspects of environmental protection and sustainable development.

The present application discloses a mine water sludge and oil slick integrated treatment system, which comprises a control system, the control system is respectively connected with a sludge collection and discharge system and an oil slick treatment system, the sludge collection and discharge system comprises an underwater reciprocating mud scraper, the output end bottom of the underwater reciprocating mud scraper is provided with an annular air stirring hopper, and the annular air stirring hopper is communicated with a wear-resistant slurry pump through a mud discharge pipeline.The present application also discloses a mine water sludge and oil slick integrated treatment method, which comprises the following steps: obtaining the related information of a pre-sedimentation tank; setting the sludge collection and discharge system and the oil slick treatment system according to the related information of the pre-sedimentation tank; removing the sludge at the bottom of the mine water pre-sedimentation tank and cleaning the oil slick on the liquid surface of the mine water pre-sedimentation tank.The mine water sludge and oil slick integrated treatment system and method realize the integrated removal of the sludge and the oil slick in the mine water, have the advantages of wide applicability, high treatment efficiency, high automation degree and the like, and can realize the efficient removal of the sludge and the oil slick.

This invention discloses a thiol-functionalized polyvinyl alcohol (PVA) / sodium alginate (SA)@ZIF-67 composite hydrogel, its preparation method, and its applications. The preparation method uses PVA and SA as matrices, forming hydrogel spheres through ionic crosslinking. After adsorbing cobalt ions, thiol-functionalized ZIF-67 crystals are grown in situ in a mixed ligand solution containing 2-methylimidazole and 2-mercapto-1-methylimidazole to obtain the PVA / SA@SH-ZIF-67 composite hydrogel. This invention achieves efficient adsorption and integrated "adsorption-reduction-fixation" removal of Cr(VI) by introducing thiol-functionalized ZIF-67 into the hydrogel network, utilizing the strong coordination and chemical reduction effects of thiol groups on hexavalent chromium. This composite hydrogel has advantages such as large adsorption capacity, high removal efficiency, and easy separation and recovery, and has broad application prospects in the field of heavy metal wastewater treatment.