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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 3. Отображено 3.
09-04-2014 дата публикации

Preparation method of composite electrode for removing arsenic in water based on electro-adsorption and method for removing arsenic

Номер: CN103708587A
Автор: PENG LIANG, TIAN CHUAN, QIN PUFENG, DAI CHUNHAO
Принадлежит:

The invention discloses a preparation method of an active carbon fiber composite electrode for removing arsenic in water based on an electro-adsorption. The method concretely comprises the following steps: firstly, soaking active carbon fiber into dilute nitric acid or sodium hydroxide for 1-24 hours to activate the active carbon fiber, washing the active carbon fiber by using water; then soaking the active carbon fiber into a water solution of flake Fe-MnO2 and vibrating for 1-24 hours; drying the active carbon fiber in a freezer dryer for 1-5 hours so as to sublimate MnO2 moisture loaded on the active carbon fiber; and finally activating at 400-700 DEG C under protection of N2 for 1-5 hours; cooling to room temperature; taking out Fe-MnO2/ACF and washing by using distilled water for a plurality of times, and baking in an oven. The method for preparing the composite electrode disclosed by the invention is simple and feasible, the characteristics that the existing technology for processing ...

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Номер записи: 1
16-04-2014 дата публикации

Combination electrode hydro-thermal synthesis method for removing arsenic in water based on electro-adsorption and arsenic removing method thereof

Номер: CN103723801A
Автор: PENG LIANG, QIN PUFENG, DAI CHUNHAO, ZENG QINGRU, TIAN CHUAN
Принадлежит:

The invention provides a combination electrode hydro-thermal synthesis method for removing arsenic in water based on electro-adsorption. The combination electrode hydro-thermal synthesis method specifically comprises the following steps of: soaking active carbon fibers in dilute nitric acid or a sodium hydroxide solution for 1-24h for activation, and then washing with water; next, putting the activated active carbon fibers in a high-temperature reaction kettle, adding 2mmol of manganese salt, 0.01-0.4mmol of iron salt, 1-4mmol of K2S2O8, 2-8mL of concentrated sulfuric acid and 60-90mL of distilled water to the high-temperature reaction kettle per 1 gram, and mixing evenly; and finally, sealing the high-temperature reaction kettle, reacting at a constant temperature ranging from 90 to 150 DEG C for 2-24h, cooling to the room temperature and then washing with distilled water, and drying in an oven. The method of preparing the combination electrode provided by the invention is simple and feasible ...

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Номер записи: 2
30-04-2014 дата публикации

Method for lowering content of arsenic in rice by nano manganese oxide

Номер: CN103752602A
Автор: LEI MING, ZHOU SHUANG, PENG LIANG, QIN PUFENG, PAN YUQI, LAN DIZHONG
Принадлежит:

The invention relates to a method for lowering content of arsenic in rice by nano manganese oxide. According to the method, a block manganese oxide product purchased in market is ground into nano manganese oxide with particle size of 20-5000nm by controlling the ball milling time, the nano manganese oxide is added into the arsenic contaminated rice field soil, so as to reduce the content of arsenic in the rice produced by the rice field soil, the additive amount of the nano manganese oxide for the arsenic contaminated rice field soil can be regulated according to the particle size of the nano manganese oxide, generally, the additive amount of the nano manganese oxide is 0.01-5% of the mass of the farming rice field soil, therefore, the content of arsenic in the rice produced by the rice field soil can be effectively lowered.

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Номер записи: 3