CN105923687A - 可除去水中重金属的纳米复合滤料 - Google Patents

可除去水中重金属的纳米复合滤料 Download PDF

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CN105923687A
CN105923687A CN201610342628.9A CN201610342628A CN105923687A CN 105923687 A CN105923687 A CN 105923687A CN 201610342628 A CN201610342628 A CN 201610342628A CN 105923687 A CN105923687 A CN 105923687A
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Abstract

本发明公开了一种可除去水中重金属的纳米复合滤料，采用以下技术方案：A、将海藻泥，E33和沸石粉混合,碾磨；B、将步骤A所得混合物与活性炭搅拌混匀，加入水；C、高温烧制，D、将步骤C所制产物与纳米二氧化钛混合，得到一种纳米复合滤料。本发明纳米复合滤料具有极强的吸附能力，可除去水中的重金属，杀菌性能好；安全无毒，无二次污染，可用于饮用水或污水的净化。

Description

可除去水中重金属的纳米复合滤料
技术领域
本发明涉及一种纳米复合滤料制备方法，属于水处理剂领域。
背景技术
净水剂能够改善水质，给人们的生活、健康带来很大的好处，然而净水剂也要配备好的净水滤料，滤料的吸附能力强弱直接关系到过滤的效果。
净水滤料，包括：纤维球、果壳滤料、精选无烟煤滤料、精制石英砂滤料、磁铁矿滤料、锰砂滤料、石灰石滤料、陶粒滤料、卵石、沸石、石榴石、麦饭石、金刚砂、稀土瓷砂、活性氧化铝，椰壳活性炭、果壳活性炭、木质粉状活性炭、煤质柱状活性炭、煤质颗粒炭，KDF,E33等。目前市面上的滤料大多为活性炭或者KDF或E33滤料，这些单一的滤料的吸附能力不能应付日益严重的水污染处理。
中国专利201310111109.8公开了一种纤维过滤料，是复合纳米碳纤维制成的纤维过滤料，由纤维丝束和核组成，纤维丝束固结在核的中心，核两边纤维丝束长度相等或不等，复合纳米碳纤维丝束是具有蜂窝状微孔结构纳米级的碳微粉与具有蜂窝状微孔结构趋势的聚酯改性切片熔融纺丝而制成的。具备过滤精度高、滤速高、纳污量大的特点外，还具备除油、除臭、除重金属离子、脱色、杀菌等多种功能，反冲洗效果更好、其寿命更长，能广泛应用于工业含油废水、市政污水、食品加工废水、水产养殖循环水，印染废水、景观水等，各种性能指标优点突出。
中国专利CN201310295572公开了一种纳米金属复合滤料，其中含有KDF组份， KDF滤材电化学反应造成重金属污染，即锌离子超标和失效后铜离子等超标，存在重金属中毒的潜在危险，很多国家禁止KDF在家庭净水装置中的使用，比如日本、欧洲等，KDF目前主要用于工业制水。
发明内容
发明目的：针对现有技术存在的缺陷，本发明提供一种安全环保，吸附能力强，过滤效果好的纳米复合滤料的制备方法。
为实现上述发明目的，本发明采用以下技术方案：
一种纳米复合滤料的制备方法，采用以下技术方案：A、将海藻泥、贝壳粉、E33和沸石粉混合,碾磨；B、将步骤A所得混合物与活性炭搅拌混匀，加入水；C、高温烧制；D、将步骤C所制产物与纳米二氧化钛混合，得到一种纳米复合滤料。
所述步骤C中的高温烧制是在1000-1500摄氏度下进行。
海藻泥、E33、沸石粉、活性炭和纳米二氧化钛的重量份数为：海藻泥20～60、贝壳粉15-30、E33为10～50，沸石粉5～20，活性炭20～60和纳米二氧化钛5～20。
海藻泥、E33、沸石粉、活性炭和纳米二氧化钛的重量份数为：海藻泥20～40、贝壳粉20-30、E33为15-35，沸石粉10-15，活性炭30-50和纳米二氧化钛8-16。
海藻泥、贝壳粉、E33、沸石粉、活性炭和纳米二氧化钛的重量百分比为：海藻泥35%，E33为20%，沸石粉10%，活性炭30%和纳米二氧化钛5%。
根据上述的技术方案，可知本发明提供的一种纳米复合滤料，相比现有技术，具有以下有益效果：
1、本发明纳米复合滤料具有极强的吸附能力，可除去水中的重金属，具有优异的杀菌性能；安全无毒，无二次污染，可用于饮用水或污水的净化。
2、本发明产品复合滤料具有非常丰富的孔隙结构，滤水时与水的接触面积大，可克服KDF滤料单独使用时与水接触面积小的弊端。
具体实施例
以下通过实施例对本发明作进一步的解释说明：
实施例1
本发明所述的纳米复合材料包括海藻泥、E33、沸石粉、活性炭和纳米二氧化钛；首先，按照配方称量：海藻泥20份、贝壳粉15份、E33为10份，沸石粉5份，活性炭20份和纳米二氧化钛5份；接着，将海藻泥、贝壳粉、E33和沸石粉混合,碾磨后，将所得混合物与活性炭搅拌混匀后，加入水进行调制；最后在1000摄氏度下进行高温烧制，出炉后冷却到常温下与纳米二氧化钛混合，即可得到一种纳米复合滤料。
实施例2
本发明所述的纳米复合材料包括海藻泥、E33、沸石粉、活性炭和纳米二氧化钛；首先，按照配方称量：海藻泥50份、贝壳粉30份、E33为25份，沸石粉5份，活性炭35份和纳米二氧化钛15份；接着，将海藻泥、贝壳粉、E33和沸石粉混合,碾磨后，将所得混合物与活性炭搅拌混匀后，加入水进行调制；最后在1100摄氏度下进行高温烧制，出炉后冷却到常温下与纳米二氧化钛混合，即可得到一种纳米复合滤料
实施例3
本发明所述的纳米复合材料包括海藻泥、E33、沸石粉、活性炭和纳米二氧化钛；首先，按照配方称量：海藻泥60份、贝壳粉25份、E33为50份，沸石粉15份，活性炭40份和纳米二氧化钛20份；接着，将海藻泥、贝壳粉、E33和沸石粉混合,碾磨后，将所得混合物与活性炭搅拌混匀后，加入水进行调制；最后在1300摄氏度下进行高温烧制，出炉后冷却到常温下与纳米二氧化钛混合，即可得到一种纳米复合滤料。
实施例4
本发明所述的纳米复合材料包括海藻泥、E33、沸石粉、活性炭和纳米二氧化钛；首先，按照配方称量：海藻泥60份、贝壳粉15份、E33为50份，沸石粉20份，活性炭60份和纳米二氧化钛20份；接着，将海藻泥、贝壳粉、E33和沸石粉混合,碾磨后，将所得混合物与活性炭搅拌混匀后，加入水进行调制；最后在1500摄氏度下进行高温烧制，出炉后冷却到常温下与纳米二氧化钛混合，即可得到一种纳米复合滤料。
对比例1
该对比例1为实施例3的对比例，具体是：
本发明所述的纳米复合材料包括海藻泥、E33、沸石粉、活性炭和纳米二氧化钛；首先，按照配方称量：海藻泥60份、E33为50份，沸石粉15份，活性炭40份和纳米二氧化钛20份；接着，将海藻泥、E33和沸石粉混合,碾磨后，将所得混合物与活性炭搅拌混匀后，加入水进行调制；最后在1300摄氏度下进行高温烧制，出炉后冷却到常温下与纳米二氧化钛混合，即可得到一种纳米复合滤料。
对比例2
该对比例是实施例4的对比例，具体是：
本发明所述的纳米复合材料包括海藻泥、E33、沸石粉、活性炭和纳米二氧化钛；首先，按照配方称量：海藻泥60份、E33为50份，沸石粉20份，活性炭60份和纳米二氧化钛20份；接着，将海藻泥、E33和沸石粉混合,碾磨后，将所得混合物与活性炭搅拌混匀后，加入水进行调制；最后在1500摄氏度下进行高温烧制，出炉后冷却到常温下与纳米二氧化钛混合，即可得到一种纳米复合滤料。
本发明在自来水净化方面与常规滤料的使用效果对比如下：
本发明所述的各实施例，在对自来水进行15分钟净化处理的效果如下：
以上所述仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (1)

1.一种纳米复合滤料，其特征在于，采用以下制备方法制得：A、将海藻泥、贝壳粉、E33和沸石粉混合,碾磨；B、将步骤A所得混合物与活性炭搅拌混匀，加入水；C、高温烧制；D、将步骤C所制产物与纳米二氧化钛混合，得到一种纳米复合滤料；
所述步骤C中的高温烧制是在1100摄氏度下进行；
所述海藻泥、E33、沸石粉、活性炭和纳米二氧化钛的重量份数为：海藻泥50份、贝壳粉30份、E33为25份，沸石粉5份，活性炭35份和纳米二氧化钛15份。
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