Chinese Academy of Sciences

Beijing University of Civil Engineering and Architecture

China Electronics Engineering Design Institute Co., Ltd.

Meipeng Jian

Huan Wang

Huijuan Liu

Ruiping Liu

Jiuhui Qu

Bao Liu

Haiyan Li

Haijun Zhang

Ziyang Zhang

Zhaoying Liu

Chaohong Tan

Yingjie Shen

Yuanping Fang

The present invention provides a denitrification and dephosphorization composite filler, a preparation method and application. The composite filler is prepared with a polysulfone polymer as a skeleton and a hybrid denitrification electron donor material by an immersion precipitation phase conversion method. The composite filler designed by the present invention has uniform ball formation and strong controllable performance, solves the problem of poor stability of denitrification and dephosphorization in a system due to the disadvantages of easy system blockage, high consumption speed, weak synergy, etc. in the traditional improved medium, and has broad application prospects in wastewater treatment.

Denitrification and dephosphorization composite filler, preparation method and application

A manganese dioxide nanowire @ multidimensional mesoporous metal-organic framework adsorbent and application method thereof for removing heavy metals from water. A multidimensional mesoporous metal-organic framework material is prepared from metal ions and organic ligands by means of a self-assembly reaction; a manganese dioxide nanowire is prepared from manganese salt and thiosulfate by means of reaction in a reaction kettle. The adsorbent possesses not only the characteristics of a multidimensional mesoporous metal-organic framework material, such as reticulated pore adaptation, a large specific surface area, and abundant reaction sites, but also the oxidative and catalytic properties of manganese dioxide nanowire.

Manganese dioxide nanowire @ multidimensional mesoporous metal-organic framework adsorbent and preparation therefor

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Beijing, China

Meipeng Jian