Fiberhome Telecommunication Technologies Co., Ltd

Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment

Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of the People's Republic of China

Ming Kong

Yimin Zhang

Yuexiang Gao

Yueming Zhu

Fei Yang

Chao Chen

Tao Zhang

Wenyong Luo

Cheng Du

Yili Ke

Zhijian Liu

Longmian Wang

Jianying Chao

Jie Zhang

Fuquan Peng

Lifeng Liu

Tao He

Xueting Xu

Zhihao Li

Ruihua Meng

Lei Yan

Xiangyang Guan

Tianlun Han

Yezhi Dou

Disclosed is a rotating cored-type biological treatment device for wastewater with low carbon content and use thereof. The device includes a composite frame (), several biological packing columns (), a rotating tray (), a rotating shaft, and a base (), wherein the biological packing columns () are detachably mounted inside the composite frame (); the rotating shaft is vertically arranged on the base () and can rotate; the rotating tray () is fixedly sheathed on the rotating shaft, and the composite frame () is disposed on the rotating tray (); and the rotating tray rotates with the rotating shaft, which driving the composite frame () and the biological packing columns () therein to rotate. The rotating cored-type biological treatment device has the advantages of high efficiency and being renewable and environment-friendly, etc.

Rotating cored-type biological treatment device of low-carbon-source wastewater and usage method therefor

The present invention discloses a highly effective in situ treatment method for endogenous pollution in sludge, belonging to the field of environmental engineering water treatment. In view of the problem that it is difficult to effectively treat the endogenous pollution of river sludge, the present invention provides the highly effective in situ treatment method for endogenous pollution in sludge, which specifically adopts a combination of phoslock, calcium peroxide and aluminum modified zeolite to perform in-situ remediation of sludge, effectively inhibit the release of endogenous pollution of sludge, facilitate the ecological treatment of polluted water subsequently, and finally realize the long-term water improvement against pollution.

Highly effective in situ treatment method for endogenous pollution in sludge

A method for preparing a doped optical fibre preform includes formulating, a rare earth material or a functional metal material and a co-doping agent into a doping solution, mixing a high-purity quartz powder with the doping solution, drying same at a temperature of 100&#xb0; C.-150&#xb0; C. for 12-48 hours, crushing and screening the same to obtain a doped quartz powder; depositing the doped quartz powder onto the surface of a target rod to form a doped core layer; replacing the doped quartz powder with the high-purity quartz powder, and depositing the high-purity quartz powder onto the surface of the doped core layer to form a quartz outer cladding; and removing the target rod, and gradually collapsing the entirety formed from the doped core layer and the quartz outer cladding at a high temperature to obtain the doped optical fibre preform.

Method for efficiently preparing doped optical fibre preform and doped optical fibre preform

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Nanjing, China

Ming Kong