Chinese Academy of Sciences

Other

Yuanyuan Sun

Jing Su

Beidou Xi

Mingxia Zheng

Juan Li

Xiaosong He

Mao Lin

Wei Liu

Chang Liu

Shuai Zhang

Yan Feng

Xin Fang Hao

Mei Han

Duygu Kocaefe

Minda Yu

Guangchun Shan

Yadian Xie

Xuemei Fu

Hongyu Ding

Danfeng Ji

A silicified modified zero-valent iron, whose surface layer is a silicon-containing oxide layer formed by silicate, which is obtained by the following method: dissolved silicate and micron iron powder are used as raw materials and mixed in proportion, and ball milling under an inert gas atmosphere to obtain the silicified modified zero-valent iron. The invention also discloses the application of silicified modified zero-valent iron in repairing polluted water bodies. The invention uses green silicate as silicon source to carry out surface silicification modification of micron zero-valent iron, which has simple operation, low cost and is convenient for large-scale production. Moreover, the prepared silicified zero-valent iron has good dispersibility, high reduction activity and strong recycling performance, and can be used for the treatment of various polluted water bodies and soil.

Silicified modified zero-valent iron and its preparation method and application

An integrated two-phase anaerobic dry fermentation reactor based on a biomimetic principle of rumen includes a reactor body; wherein the reactor body includes a dry fermentation chamber, a secondary fermentation chamber, and a liquid storage chamber. The dry fermentation chamber is arranged at an upper portion of the reactor body. The liquid storage chamber is arranged at a bottom of the reactor body. The secondary fermentation chamber is arranged between the dry fermentation chamber and the liquid storage chamber in the reactor body. The dry fermentation chamber is connected to the secondary fermentation chamber by a porous structure.

Integrated two-phase anaerobic dry fermentation reactor based on biomimetic principle of rumen

Provided are a rapid detection method for a condition of landfill leachate polluting groundwater and an application thereof. The rapid detection method includes: carrying out fluorescence detection on groundwater in a specific region of a landfill, and determining whether the groundwater is polluted according to a ratio of fluorescence intensities at specific excitation/emission wavelengths in a specific fluorescence region. The rapid detection method provided by the solution establishes characteristic fluorescence spectrum regions, fluorescence intensities and regular characteristics thereof of organic matters in leachate-polluted groundwater of a landfill in a fluorescence spectrum region, and can achieve the rapid detection of a condition of landfill leachate polluting groundwater by means of a portable fluorescence detector on site. The detection method provided by the solution is characterized by rapid detection, no need of chemical reagents, simple operation, high detection sensitivity and lower cost.

Rapid detection method for condition of landfill leachate polluting groundwater and application thereof

A multi-objective optimization method for groundwater pollution monitoring network, which mainly includes four steps: groundwater numerical value simulation, groundwater vulnerability assessment, the establishment of the monitoring network optimization model, and the solving of the optimization model. The core of the method is to establish a multi-objective optimization model aimed at establishing the least monitoring wells, monitoring the maximum pollutant concentration, and monitoring the maximum regional vulnerability value. Solving the optimization model by the algorithm and considering the relationship between the quality error and the number of monitoring wells comprehensively to determine the well number and location of the monitoring network.

Multi-objective optimization method for groundwater pollution monitoring network

An object of the present invention is to provide a novel method for extracting ultra high purity alumina from wastewater. Wastewater is recycled, filtered, concentrated and pretreated in order to mix with alkali solution and extraction agent PX-17, undergoing 2 times of purification, adding control agent SX-1 and high temperature heat treatment to finally obtain ultra high purity nano-alumina particles which purity reaches as 99.999% and particle size reaches as 20&#x2dc;200 nm.

Method for extracting ultra high purity alumina from wasterwater

The invention provides small molecule compounds capable of accelerating proliferation of stem cells and uses thereof. The compounds play an important role in the research of stem cell proliferation mechanism. The invention further relates to the uses of the compounds and relevant compounds thereof in the preparation of stem cell proliferation accelerators and the preparation of medicines accelerating stem cell proliferation. The invention also relates to the uses of the compounds in the preparation of medicines for the treatment of various diseases arising from functional cells loss or damage. The diseases arising from stem cell trauma comprise diseases related to the degeneration or damage of nervous system cells, blood system diseases, diseases related to the loss or damage of cardiovascular cells, skin burn and the like.

Small molecular compounds capable of accelerating proliferation of stem cells and use thereof

Growing community of inventors

Beijing, China

Yuanyuan Sun