CN109456045A - 利用火山岩制作水处理baf工艺专用陶粒滤料的方法 - Google Patents
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Abstract
利用火山岩制作水处理BAF工艺专用陶粒滤料的方法,属于环保新材料技术领域。按重量百分比为:火山岩占60‑65%,膨润粘土占15‑20%,污泥0‑15%,煤矸石10‑15%,进行混合,得坯料;并备用60‑100目的火山岩作为坯料骨料;先将以上所述坯料放入成球机中,启动喷雾水露机进行喷雾,将60‑100目的火山岩坯料骨料一并送入成球机中,进行滚动得坯球;将坯球输送到回转窑,低温区即400‑600℃烘干1‑2分钟,高温区即1200‑1250℃烧结2‑3分钟,出料即为陶粒滤料。该方法生产出来的陶粒滤料,孔隙率高、强度高、比表面积大、并且富含矿物质与微量元素,非常适用于曝气生物滤池(BAF)使用。
Description
技术领域
本发明属于环保新材料技术领域,具体涉及一种火山岩制作水处理BAF工艺专用陶粒滤料的方法
背景技术
当今世界,环境问题已成为全球普遍关注的问题。水处理是保护环境的重要部分,尤其是污水处理厂与工业废水领域面临出水提标的现状,污水中氨氮与总氮的去除成了重中之重,而去除氨氮与总氮最优选的工艺是曝气生物滤池(根据微生物作用分为硝化生物滤池与反硝化生物滤池),生物滤池具有占地面积小,去除效果好的优点。目前在国内已经得到广泛使用,该工艺必需的生物滤料是环保行业必须品,也是一大消耗品,而且生物滤料的优劣是生物滤池成败的核心,因此BAF工艺专用的生物滤料的研发与使用是我们多年的努力所得,也是时代发展与行业发展的需要。我们在其使用性能上得到了非常好的质量提升。
发明内容
本发明的目的在于提供一种火山岩制作水处理BAF工艺专用陶粒滤料的方法,该方法可以有效利用火山岩矿石的废弃料,以及废弃的煤矸石与污泥,变废为宝,废物得到有效利用。得到外表面高孔隙率高强度的生物陶粒滤料。
为了实现上述目的,本发明技术方案是:利用火山岩制作水处理BAF工艺专用陶粒滤料的方法,其特征在于,包括如下步骤:
(1)基料制备:将火山岩破碎到180目,膨润粘土、煤矸石破碎到200目备用;按重量百分比为:火山岩占60-65%,膨润粘土占15-20%,污泥0-15%(根据当地就近取污泥条件,可加,也可不加),煤矸石10-15%,选取以上原料用搅拌机干混10-12小时,得坯料;
并备用60-100目的火山岩作为坯料骨料;
(2)成型工艺说明:先将以上所述坯料放入成球机中,启动喷雾水露机进行喷雾,根据陶粒滤料要求规格,将60-100目的火山岩坯料骨料一并送入成球机中,以坯料骨料为圆心滚动1-2分钟成圆球,得坯球;优选坯料骨料与坯料的质量比为5:100。
(3)烘干烧结;将坯球输送到回转窑,低温区即炉温控制在400-600℃烘干时间为1-2分钟,高温区即炉温控制在1200-1250℃烧结时间为2-3分钟,出料及为陶粒滤料。
(4)按规格使用要求分级过筛包装入库。
该方法生产出来的陶粒滤料,为核壳结构,且整体孔隙率高、强度高、比表面积大、并且富含矿物质与微量元素,非常适用于曝气生物滤池(BAF)工艺使用。
本发明的优势与有益效果是:
1)首次采用一种火山岩为陶粒内核骨料与表面材料,保留火山岩了原有矿物有益成份,有益于水中微生物在其表面快速挂膜,出水达标的有力保证。
2)首次利用三种废弃原料来研制生物陶粒滤料,废弃物利用率占70%以上。
附图说明
图1为本发明实施例1得到的QFT火山生物陶粒滤料挂膜前图片;
图2为本发明实施例1得到的QFT火山生物陶粒滤料挂膜后图片;
图3为本发明实施例1得到的QFT火山生物陶粒滤料电镜图。
图4本发明实施例的检测报告图片。
具体实施方式
为了更好地理解本发明,下面结合实例进一步说明本发明的内容,但本发明并不限于以下实施例。
实施例1:
利用火山岩制作水处理BAF工艺专用陶粒滤料的方法,其特征在于如下步骤:
1)基料制备:将火山岩破碎到180目,膨润粘土、煤矸石破碎到200目备用;按重量百分比为:火山岩占65%,膨润粘土占15%,污泥10%(根据当地就近污泥条件,可加,也可不加),煤矸石10%,选取以上原料用搅拌机干混10小时,得坯料;并备用70目之间火山岩作为坯料骨料。
2)成型工艺说明:先将以上坯料放入成球机中,启动喷雾水露机,根据陶粒滤料要求规格选用火山岩骨料规格,将70目的火山岩骨料送入成球机中(坯料与骨料的质量比为5:100),以骨料为圆心滚动1.2分钟成圆球。得坯球;
3)烘干烧结;将坯球输送到回转窑,低温区(炉温控制在400-600℃)烘干时间为1.5分钟,高温区烧结(炉温控制在1200-1250℃)时间为2分钟。出料即为陶粒滤料,简称为QFT火山生物陶粒滤料。
4)按规格使用要求分级过筛包装入库。该方法生产出来的陶粒滤料,孔隙率高、强度高、比表面积大、并且富含矿物质与微量元素,非常适用于曝气生物滤池(BAF)工艺使用。
经测试,本发明生产的火山岩制作水处理BAF工艺专用陶粒滤料性能良好,其比表面积与孔隙率优越于同类产品。又称”火山生物陶粒滤料”,其各项参数详见如下的检测报告。
应用案例一:
Claims (6)
1.一种利用火山岩制作水处理BAF工艺专用陶粒滤料的方法,其特征在于,包括以下步骤:
(1)基料制备:将火山岩破碎到180目,膨润粘土、煤矸石破碎到200目备用;按重量百分比为:火山岩占60-65%,膨润粘土占15-20%,污泥0-15%,煤矸石10-15%,选取以上原料进行混合,得坯料;
并备用60-100目的火山岩作为坯料骨料;
(2)成型工艺说明:先将以上所述坯料放入成球机中,启动喷雾水露机进行喷雾,根据陶粒滤料要求规格,将60-100目的火山岩坯料骨料一并送入成球机中,以坯料骨料为圆心滚动1-2分钟成圆球,得坯球;
(3)烘干烧结;将坯球输送到回转窑,低温区即炉温控制在400-600℃烘干时间为1-2分钟,高温区即炉温控制在1200-1250℃烧结时间为2-3分钟,出料及为陶粒滤料;
(4)按规格使用要求分级过筛包装入库。
2.按照权利要求1所述的一种利用火山岩制作水处理BAF工艺专用陶粒滤料的方法,其特征在于,步骤(1)所述的污泥根据当地就近取污泥条件,可或不加。
3.按照权利要求1所述的一种利用火山岩制作水处理BAF工艺专用陶粒滤料的方法,其特征在于,坯料与骨料中均有废弃的火山岩,有效地利用了火山岩天然的矿物成份。
4.按照权利要求1所述的一种利用火山岩制作水处理BAF工艺专用陶粒滤料的方法,其特征在于,坯料骨料与坯料的质量比为5:100。
5.按照权利要求1-3任一项所述的方法制备得到的陶粒滤料。
6.按照权利要求1-3任一项所述的方法制备得到的陶粒滤料的应用,用于水处理曝气生物滤池(BAF)工艺中。
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