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    • 5. 发明授权
    • Arsenic filtering media
    • 砷过滤介质
    • US06200482B1
    • 2001-03-13
    • US09407708
    • 1999-09-28
    • Eric L. WinchesterRonald C. BerryMichael J. McMullin
    • Eric L. WinchesterRonald C. BerryMichael J. McMullin
    • C02F128
    • B01J20/06B01J20/0229B01J20/14B01J20/3204B01J20/3236B01J2220/42C02F1/281C02F2101/00C02F2101/103C02F2101/20Y10S210/911
    • Arsenic filtering media consisting essentially of calcined diatomite particles, and between 5% and 30% by weight of ferric ions bonded to the calcined diatomite particles. One method for producing the filtering media consists of: generating a mixture of calcined diatomite particles and ferric chloride; allowing the mixture to sit for an extended period, thereby allowing ferric chloride to thoroughly impregnate the diatomite particles; and slowly adding sodium hydroxide to the mixture until the pH of the mixture reaches a value of at least 9.0, for ensuring unhasty and full conversion of ferric chloride into ferric hydroxide. The filtering media thus obtained have strong and durable bonds between ferric ions and the diatomite particles. The filtering media are renewable several times with minimum reduction to their arsenic adsorption capacity. A method for renewing the filtering media comprises in-situ desorption of arsenic using sodium hydroxide and rinsing with water.
    • 基本上由煅烧硅藻土颗粒组成的砷过滤介质和结合到煅烧硅藻土颗粒的5重量%至30重量%的铁离子。 用于生产过滤介质的一种方法包括:产生煅烧硅藻土颗粒和氯化铁的混合物; 允许混合物长时间放置,从而使氯化铁充分浸渍硅藻土颗粒; 并向混合物中缓慢加入氢氧化钠,直到混合物的pH达到至少9.0的值,以确保将氯化铁转化为氢氧化铁。 由此获得的过滤介质在铁离子和硅藻土颗粒之间具有牢固和耐久的结合。 过滤介质可再生几次,最少降低其砷吸附能力。 用于更新过滤介质的方法包括使用氢氧化钠原位解吸砷并用水冲洗。
    • 8. 发明申请
    • Aquarium undergravel filter
    • 水族馆undergravel过滤器
    • US20170013812A1
    • 2017-01-19
    • US15124451
    • 2015-02-22
    • Bassam AlThumayri
    • Bassam AlThumayri
    • A01K63/04B01D35/02B01D24/00C02F1/00
    • A01K63/045B01D24/00B01D35/02B01D2101/04B01D2201/28C02F1/00C02F2101/00C02F2103/20C02F2303/20C02F2307/00
    • A surface filter for aquarium water purification is placed on the bottom of the aquarium that sucks the waste out of the tank to the canister filter. Small plastic pieces make and connect the main stream channels. Each plastic piece is composed of a couple of inverted pyramids that acts like a funnel. Water flows through the main channels sucked by an external filter. In the base of each inverted pyramid a small hole opens to the drainage channel, which has a hollow inverted V shape. Water, particles and fish waste are passed through the channels to the external filter. At the end of the assembly a cross channel collects the drained water. Collected water is transferred to the external filter outside the aquarium. A hose connects the external filter with the collector. Another hose is connected to the same filter to return the filtered water back to the aquarium.
    • 用于水族箱净水的表面过滤器放置在水族箱的底部,将废物从罐中吸收到罐式过滤器。 小塑料件制造并连接主流道。 每个塑料件都是由几个反向金字塔组成,如锥形。 水流过由外部过滤器吸入的主要通道。 在每个倒置的金字塔的底部,一个小孔通向排水通道,排水通道具有中空的倒V形。 水,颗粒和鱼类废物通过通道进入外部过滤器。 在组装结束时,十字通道收集排水。 收集的水被转移到水族箱外的外部过滤器。 软管将外部过滤器与收集器连接。 另一根软管连接到同一个过滤器,将过滤的水返回到水族箱。