The South China University of Technology

Guangdong Yue Gang Water Supply Co., Ltd.

Zhi Dang

Nengwu Zhu

Pingxiao Wu

Xiaoyun Yi

Huixing Huang

Meiqing Chen

Guosheng Sun

Yuewu Li

Chen Yang

Chuling Guo

Fucai Deng

Guining Lu

A magnetic magnesium-manganese layered double metal oxide composite and preparation and application. A soluble magnesium salt and a soluble manganese salt are dissolved in water to obtain a magnesium-manganese salt complex liquid; and a soluble carbonate and a soluble hydroxide are dissolved in water to obtain a carbonate-hydroxide complex liquid; a ferroferric oxide powder is added to the carbonate-hydroxide complex liquid, and then ethanol is added for ultrasonic dispersion to obtain a dispersion liquid; then the magnesium-manganese salt complex liquid is added for aging, centrifuging, washing, drying, grinding for sieving, and calcinating at 250-550° C. to obtain a magnetic magnesium-manganese layered double metal oxide composite. The composite of the present invention has relatively strong magnetism to Cd removal, and is featured by high adsorption efficiency, rapid adsorption rate and stability. Moreover, the composite can not only immobilize Cd efficiently, but also can be separated and recycled by magnet.

Magnetic magnesium-manganese layered double metal oxide composite and preparation and application

The present invention discloses a microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbons, and a preparation method and application thereof. The preparation method comprises the following steps: (1) culturingCP 13 in a bacteria culture liquid to obtain a bacterial broth, wherein theCP 13 was deposited in China General Microbiological Culture Collection Center (CGMCC) on Jul. 22, 2013 with a CGMCC number of CGMCC No. 7963; and (2) applying a calcium alginate and chitosan to encapsulate the bacterial broth in a microcapsule through layer-by-layer self-assembly to produce a microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbons. The present invention produces a microcapsule material with the microorganic activity through layer-by-layer self-assembly, which has superior adaptability to the environment and good ability to reduce pollution containing polycyclic aromatic hydrocarbons. The microcapsule material of the present invention can be used in bioremediation of industrial wastewater containing polycyclic aromatic hydrocarbons and contaminated soil containing polycyclic aromatic hydrocarbons.

Microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbon, and preparation method and application thereof

Provided are a method for preparing kaolin immobilized GY2B bacteria and use thereof.

Method for preparing kaolin immobilized GY2B bacteria and application thereof

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Guangzhou, China

Zhi Dang