Kai Ju's research while affiliated with Xi'an University of Architecture and Technology and other places
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Publications (8)
Nitrate-nitrogen pertains to the nitrogen component of the overall nitrate present in a given sample in order to reduce nitrate nitrogen pollution in water, nitrate nitrogen removal methods based on iron–carbon micro-electrolysis have become a key research focus. The process and mechanism of nitrate nitrogen removal by microbial coupling was compre...
To find a method for efficient removal and conversion of inorganic nitrogen compounds in three reduction systems, which are the sponge iron (s-Fe⁰)，the sponge iron + biochar (s-Fe⁰/BC) micro-electrolysis system and the sponge iron + biochar + manganese sand (s-Fe⁰/BC/MS)-enhanced micro-electrolysis system, the studies have been completed on the con...
The temperature/pH dual-responsive gel spheres were prepared by orthogonal experiments and response surface methodology, and finally, the optimal synthesis conditions were obtained by a composite score, including swelling, mechanical properties, mass transfer properties, and so forth. The results showed that a sodium alginate concentration of 3% (w...
In this study, homemade ceramsite-soil filler (system A) and a simple soil filler (system B) were applied in vertical upflow constructed wetlands, and their performance in the treatment of rural domestic wastewater were investigated under various HRTs and packing heights. Optimum performance was reached at a HRT of 6.4 d in both systems. The averag...
In the teaching of water pollution control theory, the design of sewage treatment plant engineering is a very important practical teaching link. This teaching practice project has a very important guiding role in cultivating students' engineering practice ability. This article first analyzes the current teaching status of sewage treatment plant eng...
Citations
... Because manganese dioxide (MnO 2 ), the main component of manganese sand, has a catalytic effect, Guihua Dong et al. 7 found that MnO 2 can delay the process of passivation of the zero-valent iron surface. Yongqing Sun et al. 8 introduced manganese sand into the ICME system, nding that the addition of manganese sand could strengthen ICME and delay the surface passivation of sponge iron. The surface products were mainly composed of Fe 2 O 3 and Fe 3 O 4 , with the conversion rate of NO 3 -N reaching 80.3% and the total nitrogen removal rate reaching 58%. ...
... Smart hydrogels have attracted increasing attention since they can exhibit dramatic change of volume or other properties in responding to external stimuli, such as temperature [1][2][3], pH [4][5][6][7][8], humidity [9][10][11][12], special ions or molecules [13][14][15][16], ionic strength or electric field [17,18]. They are often involved in liquid environments, i.e., salt solutions, organic solvents, or both of them when applied in the field of cell culture, drug delivery, plant cultivation, soft actuator, etc. ...
... The relative abundance of Denitratisoma was the highest in CW-MFC at 2.51 %, followed by 1.34 % in PCW, and the lowest in PCW-MFC at 0.35 %. Denitratisoma was reported to be a common heterotrophic denitrifying bacterium [45]. Obviously, the PCW-MFC system with pyrite as the anode had the highest relative abundance of functional microorganisms. ...
... Lightweight ceramsite is an important building material and environmental protection material. It can be produced using carbide slag as the raw material [14][15][16][17][18]. However, hightemperature calcination is essential for preparing ceramsite. ...
... Through such methods, pollutants, such as ammonia, are removed, and nitrogen-based compounds, e.g., proteins, are synthesized (Pilgrim et al., 1970). The action of microorganisms in this context has become the basis for their use on an industrial level (Huo et al., 2020;Zhang et al., 2020). For example, microbial functions are applied to treat nitrogen compounds in wastewater generated in cities (Huo et al., 2020;Zhang et al., 2020). ...
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