CN105536737A - 一种水处理铅吸附剂及其制备方法 - Google Patents
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Abstract
本发明公开了一种水处理铅吸附剂及其制备方法,上述水处理铅吸附剂,由包含以下重量份的组分制成:聚丙烯酰胺40-50份、环氧氯丙烷20-30份、硅藻土10-14份、硫酸亚铁4-7份、乙二胺四乙酸四钠2-3份、磷酸锆2-3份、硝酸锌2-3份、硼硅酸2-3份、N-异丁基十四碳四烯酰胺2-3份、4ˊ,5,7-三羟基黄酮1-3份和硫酸铝1-3份。本发明还提供了一种水处理铅吸附剂的制备方法。
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铅吸附剂及其制备方法。
背景技术
随着人口的增长和工业的发展,水资源匮乏,环境负担也不断加重,水质的好坏直接影响着环境和人们的身体健康,环境污染问题已经成为我国亟待解决的问题。
污水处理工艺可能根据处理的目标和水质的不同来选择相应的处理过程,在污水生化处理过程中,不仅包括去除水体中碳源物质、氮源、磷源等营养物质,同时还包括去除水体中有毒有害的重金属离子如铜、镉、铅离子等。
发明内容
针对上述的需求,本发明特别提供了一种水处理铅吸附剂及其制备方法。
本发明的目的可以通过以下技术方案实现:
一种水处理铅吸附剂,由包含以下重量份的组分制成:
聚丙烯酰胺40-50份,环氧氯丙烷20-30份,硅藻土10-14份,
硫酸亚铁4-7份,乙二胺四乙酸四钠2-3份,磷酸锆2-3份,
硝酸锌2-3份,硼硅酸2-3份,
N-异丁基十四碳四烯酰胺2-3份,
4',5,7-三羟基黄酮1-3份,硫酸铝1-3份。
所述组分还包括三硝酸铈0-1重量份。
所述组分还包括氟硅酸钠0-0.5重量份。
一种水处理铅吸附剂的制备方法,该方法包括以下步骤:
(1)称取聚丙烯酰胺40-50重量份、环氧氯丙烷20-30重量份、硫酸亚铁4-7重量份、乙二胺四乙酸四钠2-3重量份、硝酸锌2-3重量份、硼硅酸2-3重量份、N-异丁基十四碳四烯酰胺2-3重量份、4',5,7-三羟基黄酮1-3重量份、硫酸铝1-3重量份、三硝酸铈0-1重量份和氟硅酸钠0-0.5重量份,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌8-12分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土10-14重量份、磷酸锆2-3重量份,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
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)本发明的水处理铅吸附剂以聚丙烯酰胺为主要原料,通过加入环氧氯丙烷、硅藻土、硫酸亚铁、乙二胺四乙酸四钠、磷酸锆、硝酸锌、硼硅酸、N-异丁基十四碳四烯酰胺、4',5,7-三羟基黄酮和硫酸铝,制得的水处理铅吸附剂具有良好的力学强度和大的比表面积,且具有良好的铅吸附性能和良好的杀菌性能。
(2)本发明的水处理铅吸附剂具有良好的水处理效果,且性能稳定,能够适用于不同PH值的污水处理。
(3)本发明的水处理铅吸附剂,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)称取聚丙烯酰胺40kg、环氧氯丙烷20kg、硫酸亚铁4kg、乙二胺四乙酸四钠2kg、硝酸锌2kg、硼硅酸2kg、N-异丁基十四碳四烯酰胺2kg、4',5,7-三羟基黄酮1kg和硫酸铝1kg,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌8分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土10kg、磷酸锆2kg,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
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℃。
制得水处理铅吸附剂的性能测试结果如表1所示。
实施例2
(1)称取聚丙烯酰胺40kg、环氧氯丙烷20kg、硫酸亚铁4kg、乙二胺四乙酸四钠2kg、硝酸锌2kg、硼硅酸2kg、N-异丁基十四碳四烯酰胺2kg、4',5,7-三羟基黄酮1kg、硫酸铝1kg、三硝酸铈1kg和氟硅酸钠0.5kg,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌8分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土10kg、磷酸锆2kg,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
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℃。
制得水处理铅吸附剂的性能测试结果如表1所示。
实施例3
(1)称取聚丙烯酰胺50kg、环氧氯丙烷30kg、硫酸亚铁7kg、乙二胺四乙酸四钠3kg、硝酸锌3kg、硼硅酸3kg、N-异丁基十四碳四烯酰胺3kg、4',5,7-三羟基黄酮3kg、硫酸铝3kg、三硝酸铈1kg和氟硅酸钠0.5kg,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌12分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土14kg、磷酸锆3kg,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
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℃。
制得水处理铅吸附剂的性能测试结果如表1所示。
实施例4
(1)称取聚丙烯酰胺50kg、环氧氯丙烷30kg、硫酸亚铁7kg、乙二胺四乙酸四钠3kg、硝酸锌3kg、硼硅酸3kg、N-异丁基十四碳四烯酰胺2kg、4',5,7-三羟基黄酮1kg、硫酸铝3kg、三硝酸铈1kg和氟硅酸钠0.5kg,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌12分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土14kg、磷酸锆3kg,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
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℃。
制得水处理铅吸附剂的性能测试结果如表1所示。
实施例5
(1)称取聚丙烯酰胺45kg、环氧氯丙烷25kg、硫酸亚铁5kg、乙二胺四乙酸四钠2.5kg、硝酸锌2.5kg、硼硅酸2.5kg、N-异丁基十四碳四烯酰胺2.5kg、4',5,7-三羟基黄酮2kg、硫酸铝2kg、三硝酸铈0.5kg和氟硅酸钠0.5kg,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌10分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土12kg、磷酸锆2.5kg,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
所述双螺杆挤出机各区段温度为:一区温度165℃,二区温度210℃,三区温度240℃,四区温度205℃,五区温度180℃。
制得水处理铅吸附剂的性能测试结果如表1所示。
对比例1
(1)称取聚丙烯酰胺50kg、环氧氯丙烷30kg、硫酸亚铁7kg、乙二胺四乙酸四钠3kg、硝酸锌3kg、硼硅酸3kg、N-异丁基十四碳四烯酰胺3kg、4',5,7-三羟基黄酮3kg、硫酸铝3kg、三硝酸铈1kg和氟硅酸钠0.5kg,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌12分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土14kg,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
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℃。
制得水处理铅吸附剂的性能测试结果如表1所示。
对比例2
(1)称取聚丙烯酰胺50kg、环氧氯丙烷30kg、硫酸亚铁7kg、乙二胺四乙酸四钠3kg、硝酸锌3kg、硼硅酸3kg、4',5,7-三羟基黄酮3kg、硫酸铝3kg、三硝酸铈1kg和氟硅酸钠0.5kg,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌12分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土14kg、磷酸锆3kg,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
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℃。
制得水处理铅吸附剂的性能测试结果如表1所示。
对比例3
(1)称取聚丙烯酰胺50kg、环氧氯丙烷30kg、硫酸亚铁7kg、乙二胺四乙酸四钠3kg、硝酸锌3kg、硼硅酸3kg、N-异丁基十四碳四烯酰胺3kg、硫酸铝3kg、三硝酸铈1kg和氟硅酸钠0.5kg,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌12分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土14kg、磷酸锆3kg,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
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℃。
制得水处理铅吸附剂的性能测试结果如表1所示。
将实施例1-5和对比例1-3的水处理铅吸附剂用于1L的污水进行处理:污水的COD为650mg/L,污水中铅离子浓度为68mg/L,水处理铅吸附剂的用量为0.4g/L即可达到良好的处理效果,浊度去除率可达95%以上,具体结果请见表1。
表1
测试项目 | 铅离子浓度(mg/L) | COD(mg/L) | 浊度(NTU)去除率(%) |
实施例1 | 0.78 | 38 | 97 |
实施例2 | 0.73 | 37 | 98 |
实施例3 | 0.56 | 29 | 99 |
实施例4 | 0.64 | 27 | 99 |
实施例5 | 0.53 | 28 | 99 |
对比例1 | 16.48 | 99 | 76 |
对比例2 | 17.59 | 97 | 63 |
对比例3 | 16.49 | 94 | 60 |
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)
1.一种水处理铅吸附剂,其特征在于,由包含以下重量份的组分制成:
聚丙烯酰胺40-50份,环氧氯丙烷20-30份,硅藻土10-14份,
硫酸亚铁4-7份,乙二胺四乙酸四钠2-3份,磷酸锆2-3份,
硝酸锌2-3份,硼硅酸2-3份,
N-异丁基十四碳四烯酰胺2-3份,
4',5,7-三羟基黄酮1-3份,硫酸铝1-3份。
2.根据权利要求1所述水处理铅吸附剂,其特征在于,所述组分还包括三硝酸铈0-1重量份。
3.根据权利要求1所述水处理铅吸附剂,其特征在于,所述组分还包括氟硅酸钠0-0.5重量份。
4.一种水处理铅吸附剂的制备方法,其特征在于,该方法包括以下步骤:
(1)称取聚丙烯酰胺40-50重量份、环氧氯丙烷20-30重量份、硫酸亚铁4-7重量份、乙二胺四乙酸四钠2-3重量份、硝酸锌2-3重量份、硼硅酸2-3重量份、N-异丁基十四碳四烯酰胺2-3重量份、4',5,7-三羟基黄酮1-3重量份、硫酸铝1-3重量份、三硝酸铈0-1重量份和氟硅酸钠0-0.5重量份,混合均匀;
(2)将上述组分加入三叶搅拌机中搅拌8-12分钟,加入双螺杆挤出机中,在双螺杆挤出机的侧加料口加入硅藻土10-14重量份、磷酸锆2-3重量份,熔融、挤出、干燥、切粒,得到水处理铅吸附剂。
5.根据权利要求4所述水处理铅吸附剂的制备方法,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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