CN105344332A - 一种水处理砷吸附材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种水处理砷吸附材料及其制备方法,上述水处理砷吸附材料,由包含以下重量份的组分制成:聚乙烯60-70份、硅藻土8-12份、羟丙基淀粉磷酸钠2-3份、硬脂酸镁2-3份、羟丙基甲基纤维素1-2份、二氧化钛纤维0.5-1份、γ-巯丙基三甲氧基硅烷0.5-1份、亚甲基二脲0.5-1份、三氧化二钇0.5-1份、碳酸锶0.02-0.05份和聚硅酸硫酸铁0.02-0.2份。本发明还提供了一种水处理砷吸附材料的制备方法。
Description
技术领域
本发明属于水处理材料领域,特别涉及一种水处理砷吸附材料及其制备方法。
背景技术
目前,砷常被掺入合金、制造杀虫剂、制造药物和玻璃等,并可通过食物链或地下水、地面水进入人体或其它生物体,从而危害人类健康和整个生态环境。
目前常用的去除水中砷酸根或亚砷酸根的方法有沉淀法、膜处理法、吸附法、生物法、离子交换法、氧化法和电絮凝法等。其中,吸附法简单易行、去除效果好、能循环利用,加之吸附剂来源广泛,价格低廉,因而受到广泛关注。
发明内容
针对上述的需求,本发明特别提供了一种水处理砷吸附材料及其制备方法。
本发明的目的可以通过以下技术方案实现:
一种水处理砷吸附材料,由包含以下重量份的组分制成:
聚乙烯60-70份,
硅藻土8-12份,
羟丙基淀粉磷酸钠2-3份,
硬脂酸镁2-3份,
羟丙基甲基纤维素1-2份,
二氧化钛纤维0.5-1份,
γ-巯丙基三甲氧基硅烷0.5-1份,
亚甲基二脲0.5-1份,
三氧化二钇0.5-1份,
碳酸锶0.02-0.05份,
聚硅酸硫酸铁0.02-0.2份。
所述组分还包括甲基异噻唑啉酮0-0.5重量份。
所述二氧化钛纤维的直径为8-12纳米。
一种水处理砷吸附材料的制备方法,该方法包括以下步骤:
(1)称取聚乙烯60-70重量份、硅藻土8-12重量份、羟丙基淀粉磷酸钠2-3重量份、硬脂酸镁2-3重量份、碳酸锶0.02-0.05重量份、γ-巯丙基三甲氧基硅烷0.5-1重量份、亚甲基二脲0.5-1重量份、聚硅酸硫酸铁0.02-0.2重量份、三氧化二钇0.5-1重量份和甲基异噻唑啉酮0-0.5重量份;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素1-2重量份和二氧化钛纤维0.5-1重量份,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度160-170℃,二区温度190-220℃,三区温度230-250℃,四区温度200-210℃,五区温度170-190℃。
本发明与现有技术相比,其有益效果为:
(1)本发明制得的水处理砷吸附材料以聚乙烯为主要原料,通过加入硅藻土、羟丙基淀粉磷酸钠、硬脂酸镁、羟丙基甲基纤维素、二氧化钛纤维、碳酸锶、γ-巯丙基三甲氧基硅烷、亚甲基二脲、聚硅酸硫酸铁和三氧化二钇,制得的水处理砷吸附材料具有良好的吸附和絮凝性能,能够有效除去水中砷,且具有良好的抗菌和杀菌性能。
(2)本发明制得的水处理砷吸附材料具有良好的稳定性。
(3)本发明的水处理砷吸附材料,其制备方法简单,易于工业化生产。
具体实施方式
以下结合实施例对本发明作进一步的说明。
实施例1
(1)称取聚乙烯60kg、硅藻土8kg、羟丙基淀粉磷酸钠2kg、硬脂酸镁2kg、碳酸锶0.02kg、γ-巯丙基三甲氧基硅烷0.5kg、亚甲基二脲0.5kg、聚硅酸硫酸铁0.02kg、三氧化二钇0.5kg和甲基异噻唑啉酮0.5kg;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素1kg和直径为8纳米的二氧化钛纤维0.5kg,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度160℃,二区温度190℃,三区温度230℃,四区温度200℃,五区温度170℃。
制得水处理砷吸附材料的性能测试结果如表1所示。
实施例2
(1)称取聚乙烯60kg、硅藻土8kg、羟丙基淀粉磷酸钠2kg、硬脂酸镁2kg、碳酸锶0.02kg、γ-巯丙基三甲氧基硅烷0.5kg、亚甲基二脲0.5kg、聚硅酸硫酸铁0.02kg和三氧化二钇0.5kg;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素1kg和直径为8纳米的二氧化钛纤维0.5kg,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度160℃,二区温度190℃,三区温度230℃,四区温度200℃,五区温度170℃。
制得水处理砷吸附材料的性能测试结果如表1所示。
实施例3
(1)称取聚乙烯70kg、硅藻土12kg、羟丙基淀粉磷酸钠3kg、硬脂酸镁3kg、碳酸锶0.05kg、γ-巯丙基三甲氧基硅烷1kg、亚甲基二脲1kg、聚硅酸硫酸铁0.2kg、三氧化二钇1kg和甲基异噻唑啉酮0.5kg;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素2kg和直径为12纳米的二氧化钛纤维1kg,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度170℃,二区温度220℃,三区温度250℃,四区温度210℃,五区温度190℃。
制得水处理砷吸附材料的性能测试结果如表1所示。
实施例4
(1)称取聚乙烯70kg、硅藻土12kg、羟丙基淀粉磷酸钠3kg、硬脂酸镁3kg、碳酸锶0.05kg、γ-巯丙基三甲氧基硅烷0.5kg、亚甲基二脲0.5kg、聚硅酸硫酸铁0.2kg、三氧化二钇0.5kg和甲基异噻唑啉酮0.5kg;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素2kg和直径为12纳米的二氧化钛纤维1kg,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度170℃,二区温度220℃,三区温度250℃,四区温度210℃,五区温度190℃。
制得水处理砷吸附材料的性能测试结果如表1所示。
实施例5
(1)称取聚乙烯65kg、硅藻土10kg、羟丙基淀粉磷酸钠2.5kg、硬脂酸镁2.5kg、碳酸锶0.04kg、γ-巯丙基三甲氧基硅烷0.8kg、亚甲基二脲0.8kg、聚硅酸硫酸铁0.1kg、三氧化二钇0.8kg和甲基异噻唑啉酮0.2kg;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素1.5kg和直径为10纳米的二氧化钛纤维0.8kg,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度165℃,二区温度200℃,三区温度240℃,四区温度205℃,五区温度180℃。
制得水处理砷吸附材料的性能测试结果如表1所示。
对比例1
(1)称取聚乙烯70kg、硅藻土12kg、羟丙基淀粉磷酸钠3kg、硬脂酸镁3kg、碳酸锶0.05kg、亚甲基二脲1kg、聚硅酸硫酸铁0.2kg、三氧化二钇1kg和甲基异噻唑啉酮0.5kg;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素2kg和直径为12纳米的二氧化钛纤维1kg,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度170℃,二区温度220℃,三区温度250℃,四区温度210℃,五区温度190℃。
制得水处理砷吸附材料的性能测试结果如表1所示。
对比例2
(1)称取聚乙烯70kg、硅藻土12kg、羟丙基淀粉磷酸钠3kg、硬脂酸镁3kg、碳酸锶0.05kg、γ-巯丙基三甲氧基硅烷1kg、亚甲基二脲1kg、聚硅酸硫酸铁0.2kg和甲基异噻唑啉酮0.5kg;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素2kg和直径为12纳米的二氧化钛纤维1kg,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度170℃,二区温度220℃,三区温度250℃,四区温度210℃,五区温度190℃。
制得水处理砷吸附材料的性能测试结果如表1所示。
对比例3
(1)称取聚乙烯70kg、硅藻土12kg、羟丙基淀粉磷酸钠3kg、硬脂酸镁3kg、碳酸锶0.05kg、γ-巯丙基三甲氧基硅烷1kg、亚甲基二脲1kg、聚硅酸硫酸铁0.2kg、三氧化二钇1kg和甲基异噻唑啉酮0.5kg;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素2kg和直径为25纳米的二氧化钛纤维1kg,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
所述双螺杆挤出机各区段温度为:一区温度170℃,二区温度220℃,三区温度250℃,四区温度210℃,五区温度190℃。
制得水处理砷吸附材料的性能测试结果如表1所示。
将实施例1-5和对比例1-3的砷吸附材料用于污水处理:将其用于化学需氧量(COD)为700mg/L、总砷含量为3mg/L的生活污水中时,砷吸附材料的用量为0.01g/L,将砷吸附材料放入污水中以300r/min搅拌8小时,即可达到良好的处理效果,具体处理结果请见表1。
表1
本发明不限于这里的实施例,本领域技术人员根据本发明的揭示,不脱离本发明范畴所做出的改进和修改都应该在本发明的保护范围之内。
Claims (5)
1.一种水处理砷吸附材料,其特征在于,由包含以下重量份的组分制成:
聚乙烯60-70份,
硅藻土8-12份,
羟丙基淀粉磷酸钠2-3份,
硬脂酸镁2-3份,
羟丙基甲基纤维素1-2份,
二氧化钛纤维0.5-1份,
γ-巯丙基三甲氧基硅烷0.5-1份,
亚甲基二脲0.5-1份,
三氧化二钇0.5-1份,
碳酸锶0.02-0.05份,
聚硅酸硫酸铁0.02-0.2份。
2.根据权利要求1所述水处理砷吸附材料,其特征在于,所述组分还包括甲基异噻唑啉酮0-0.5重量份。
3.根据权利要求1所述水处理砷吸附材料,其特征在于,所述二氧化钛纤维的直径为8-12纳米。
4.一种水处理砷吸附材料的制备方法,其特征在于,该方法包括以下步骤:
(1)称取聚乙烯60-70重量份、硅藻土8-12重量份、羟丙基淀粉磷酸钠2-3重量份、硬脂酸镁2-3重量份、碳酸锶0.02-0.05重量份、γ-巯丙基三甲氧基硅烷0.5-1重量份、亚甲基二脲0.5-1重量份、聚硅酸硫酸铁0.02-0.2重量份、三氧化二钇0.5-1重量份和甲基异噻唑啉酮0-0.5重量份;
(2)将上述组分加入三叶搅拌机中混合均匀,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入羟丙基甲基纤维素1-2重量份和二氧化钛纤维0.5-1重量份,熔融、挤出、干燥、切粒,得到水处理砷吸附材料。
5.根据权利要求4所述水处理砷吸附材料的制备方法,其特征在于,所述双螺杆挤出机各区段温度为:一区温度160-170℃,二区温度190-220℃,三区温度230-250℃,四区温度200-210℃,五区温度170-190℃。
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