Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Regenerated filter brick for denitrification deep-bed filter tank and preparation method of regenerated filter brick
The invention relates to the technical field of sewage treatment, and discloses a regenerated filter brick for a denitrification deep-bed filter tank, which is prepared by bonding and curing engineering construction waste through aerated cement mortar, is positioned at the bottom of the denitrification deep-bed filter, and is used for collecting filtered water of the deep-bed filter tank, supporting a filler and uniformly distributing water and gas during backwashing. The engineering construction waste mainly comprising a coarse aggregate and a porous structure formed in the curing process of the aerated cement mortar ensure very high communication porosity of the filter brick. The invention also provides a preparation method of the regenerated filter brick for the denitrification deep-bed filter tank. The regenerated filter brick disclosed by the invention has the characteristics of low cost, large flow cross section, small flow resistance, good water and gas distribution uniformity, high strength, difficulty in blockage and environmental friendliness, and has great potential in engineering application.
本发明涉及污水处理技术领域，公开了一种用于反硝化深床滤池的再生滤砖，该再生滤砖采用工程建筑废料通过加气水泥砂浆粘结固化制成，位于反硝化深床滤池底部，用于深床滤池的过滤水收集、支承填料和反冲洗时均匀布水布气。粗集料为主的工程建设废料以及加气水泥砂浆固化过程中形成的多孔隙结构，保证了滤砖很高的连通孔隙率。本发明还提出了一种用于反硝化深床滤池的再生滤砖的制备方法。本发明的再生滤砖具有成本低、过流断面大、过流阻力小、布水布气均匀性好、强度高、不易堵塞和环境友好的特点，具有工程应用的巨大潜力。
Regenerated filter brick for denitrification deep-bed filter tank and preparation method of regenerated filter brick
The invention relates to the technical field of sewage treatment, and discloses a regenerated filter brick for a denitrification deep-bed filter tank, which is prepared by bonding and curing engineering construction waste through aerated cement mortar, is positioned at the bottom of the denitrification deep-bed filter, and is used for collecting filtered water of the deep-bed filter tank, supporting a filler and uniformly distributing water and gas during backwashing. The engineering construction waste mainly comprising a coarse aggregate and a porous structure formed in the curing process of the aerated cement mortar ensure very high communication porosity of the filter brick. The invention also provides a preparation method of the regenerated filter brick for the denitrification deep-bed filter tank. The regenerated filter brick disclosed by the invention has the characteristics of low cost, large flow cross section, small flow resistance, good water and gas distribution uniformity, high strength, difficulty in blockage and environmental friendliness, and has great potential in engineering application.
本发明涉及污水处理技术领域，公开了一种用于反硝化深床滤池的再生滤砖，该再生滤砖采用工程建筑废料通过加气水泥砂浆粘结固化制成，位于反硝化深床滤池底部，用于深床滤池的过滤水收集、支承填料和反冲洗时均匀布水布气。粗集料为主的工程建设废料以及加气水泥砂浆固化过程中形成的多孔隙结构，保证了滤砖很高的连通孔隙率。本发明还提出了一种用于反硝化深床滤池的再生滤砖的制备方法。本发明的再生滤砖具有成本低、过流断面大、过流阻力小、布水布气均匀性好、强度高、不易堵塞和环境友好的特点，具有工程应用的巨大潜力。
Regenerated filter brick for denitrification deep-bed filter tank and preparation method of regenerated filter brick
一种用于反硝化深床滤池的再生滤砖及其制备方法
SUN XINBAI (Autor:in) / LIU AIBAO (Autor:in) / DONG PAN (Autor:in) / WANG KAI (Autor:in) / ZHU HUI (Autor:in) / CAO HUIZHONG (Autor:in)
28.01.2022
Patent
Elektronische Ressource
Chinesisch
Construction method of regenerated filter bricks for denitrification deep-bed filter
| Europäisches Patentamt | 2021