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发明公开
CN106311146A 乡村重金属富集植物生物质制备的生物炭及制法和应用 无效 - 驳回

乡村重金属富集植物生物质制备的生物炭及制法和应用
摘要：
一种基于乡村重金属富集植物生物质制备的生物炭，通过下述方法得到：A)将富集Co或/和Pb的植物生物质烘干并破碎；B)破碎后的颗粒与50℃-90℃的氢氧化钠水溶液搅拌进行活化；C)活化后的体颗粒于二氧化碳气氛中，150-200min内从室温上升至800-900℃，保持100-120min，150-200min内降至室温，将生物质碳化；D)碳化后的生物炭烘干，冰水浴下滴加硼氢化钠溶液还原；E)水洗至pH为中性后烘干制得活化的生物炭。本发明还公开了上述生物炭的制备方法。本发明的生物炭可用于土壤改良。
摘要（英）：

The invention relates to biological charcoal prepared by countryside heavy-metal-enriched plant biomass and a preparation method of the biological charcoal. The preparation method includes the steps of A), drying Co-enriched or/and Pb-enriched plant biomass, and crushing; B), mixing the crushed particles with sodium hydroxide aqueous solution of 50-90 DEG C, and activating; C), in carbon dioxide atmosphere, rising the temperature of the activated particles from room temperature to 800-900 DEG C in 150-200 minutes, keeping the temperature for 100-120 minutes, and cooling to room temperature in 150-200 minutes so as to carbonize the biomass; D), drying the carbonized biological charcoal, and dropwise adding sodium borohydride solution for reduction under ice water bath; E), washing until pH is neutral, and drying to obtain activated biological charcoal. The biological charcoal can be used for improving soil.

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