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1.发明公开公开(公告)号：US20240139790A1
公开(公告)日：2024-05-02
申请号：US18549904
申请日：2022-03-16
发明人： Lei WANG , Beidou XI , Yangyang WANG , Yan SHAO , Nan XU , Shaofeng LI , Xiaoshu WANG , Jinsheng WANG , Ming CHANG , Gen ZHANG , Lulu PAN , Kui ZHANG , Honghu ZENG
摘要： A composite biochar for controlling heavy metal pollution and a process for producing the same, in particular enrichment of heavy metals such as arsenic and lead in soil with centipede grass, thereafter centipede grass is sintered with hydroxyapatite, sepiolite and chitosan, and compounded with microorganisms to produce said composite biochar; through the process of the present invention, heavy metals such as arsenic and lead are stably enriched or coated in said composite biochar, significantly reducing the potential hazard of arsenic and lead to the environment, and also providing new developmental ideas for treating heavy metal biomass.
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公开(公告)号：US20240140843A1
公开(公告)日：2024-05-02
申请号：US18549905
申请日：2022-02-23
发明人： Lei WANG , Beidou XI , Honghu ZENG , Nan XU , Yan SHAO , Shaofeng LI , Ming CHANG , Jinsheng WANG , Xiaoshu WANG , Yangyang WANG , Gen ZHANG , Lulu PAN , Jing WANG
IPC分类号： C02F3/32 , B09B3/40 , B09B3/60 , C02F101/20
CPC分类号： C02F3/32 , B09B3/40 , B09B3/60 , C02F2101/20
摘要： A porous biochar for improving heavy pollution and a method for producing the same. Said porous biochar is prepared as follows: arrowhead, which has excellent enrichment of lead, is used to absorb heavy metal lead in polluted water or artificial wetlands, simultaneously absorb heavy metal cadmium, thereafter is dried and treated as a biomass, and then the biomass is calcined in stages with a passivating agent in a high temperature environment, so as to heavy metals such as lead and cadmium be stably coated or enriched in a biochar, which is mixed with Pseudomonas aeruginosa having high resistant, to obtain the porous biochar; the porous biochar has high specific surface area, high porosity and excellent mechanical properties, is very stable under different acid-base environments and oxidizing conditions.
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公开(公告)号：US20240174572A1
公开(公告)日：2024-05-30
申请号：US18549902
申请日：2022-03-14
发明人： Beidou XI , Lei WANG , Lan JIANG , Yan SHAO , Nan XU , Shaofeng LI , Yangyang WANG , Xiaoshu WANG , Jinsheng WANG , Ming CHANG , Gen ZHANG , Hui WANG , Honghu ZENG , Xianghua XIAO
IPC分类号： C04B33/132 , C02F1/68 , C02F3/32 , C02F101/20 , C04B33/04 , C04B33/32 , C10B53/02 , C10B57/02 , C10B57/06 , C10B57/14 , C10B57/16
CPC分类号： C04B33/1327 , C04B33/04 , C04B33/32 , C10B53/02 , C10B57/02 , C10B57/06 , C10B57/14 , C10B57/16 , C02F1/683 , C02F3/327 , C02F2101/20 , C04B2235/349 , C04B2235/422 , C04B2235/48 , C04B2235/6567 , C04B2235/661
摘要： A biochar is produced by co-pyrolysing an aquatic plant enriched with heavy metals with a clay mineral, and the aquatic plants themselves have high enrichment and adsorb heavy metals in contaminated water; heavy metals are in situ adsorbed, and are coated or enriched in the biochar, therefore extending the migration time of heavy metals, which are also very stable; attapulgite and montmorillonite as clay minerals are loaded in the biochar during the preparing process; heavy metals contained in the biochar play a catalytic role, and synergy with activated attapulgite, therefore increasing the reliability of the biochar, and effectively reducing the ecological effectiveness and potential risk of heavy metals in the biochar.
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公开(公告)号：US20240157415A1
公开(公告)日：2024-05-16
申请号：US18549903
申请日：2022-03-03
发明人： Lei WANG , Beidou XI , Xiaoshu WANG , Nan XU , Yan SHAO , Shaofeng LI , Yangyang WANG , Jinsheng WANG , Ming CHANG , Gen ZHANG , Lulu PAN , Honghu ZENG , Bo YANG
摘要： A process for producing a heavy metal mediated biochar composite using silicate solidification. Hydrocharis dubia has excellent enrichment of manganese ions in sewage, and is used to treat sewage water to adsorb heavy metals such as lead, manganese and zinc contained in the sewage water into roots, stems and leaves thereof, which are pyrolysed in stages at high temperature with activated red mud and bentonite prior to blending with zeolites, to produce said heavy metal mediated biochar composite; the process significantly extends the migration time of heavy metals, increases the stability of heavy metals and reduces the risk of environmental pollution by heavy metal leakage.
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