CN111068633A - 一种有机类净水剂及生产工艺 - Google Patents

一种有机类净水剂及生产工艺 Download PDF

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CN111068633A
CN111068633A CN202010077811.7A CN202010077811A CN111068633A CN 111068633 A CN111068633 A CN 111068633A CN 202010077811 A CN202010077811 A CN 202010077811A CN 111068633 A CN111068633 A CN 111068633A
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陈磊
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Guangzhou Green State Environment Technology Co ltd
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    • C02F2209/11Turbidity

Abstract

本发明公开了一种有机类净水剂的生产工艺,包括以下步骤:以下份数均为质量份数,A、将300~500份的海藻粉碎,加入200~300份的乙酸乙酯后充分搅拌得混合液;B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;C、将步骤B得到的结晶固体与15~20份的碱式氯化铝、30~50份的膨润土、10~20份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;D、在混悬液中加入4~5份的明胶、1~2份的十二烷基二甲基苄基氯化铵和2~3份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。本发明可以解决现有技术的不足,提高了有效成分的利用率。

Description

一种有机类净水剂及生产工艺
技术领域
本发明涉及污水处理技术领域,尤其是一种有机类净水剂及生产工艺。
背景技术
在污水处理过程中,需要在污水中加入净水剂来对污水中的污染物进行吸收沉淀。现有净水剂的种类繁多,其中有机类净水剂依靠其价格低、无毒、易降解等优点逐渐成为了市场的主销产品之一。但现有有机类净水剂还普遍存在有效成分利用率低的问题,导致有机类净水剂的消耗量较大。
发明内容
本发明要解决的技术问题是提供一种有机类净水剂及生产工艺,能够解决现有技术的不足,提高了有效成分的利用率。
为解决上述技术问题,本发明所采取的技术方案如下。
一种有机类净水剂的生产工艺,包括以下步骤:
以下份数均为质量份数,
A、将300~500份的海藻粉碎,加入200~300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;
C、将步骤B得到的结晶固体与15~20份的碱式氯化铝、30~50份的膨润土、10~20份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入4~5份的明胶、1~2份的十二烷基二甲基苄基氯化铵和2~3份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。
作为优选,包括以下步骤:
A、将200份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;
C、将步骤B得到的结晶固体与15份的碱式氯化铝、50份的膨润土、15份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、1份的十二烷基二甲基苄基氯化铵和3份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。
作为优选,包括以下步骤:
A、将250份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;浓缩过程分为两个阶段,第一阶段温度保持在25℃,当结晶速率降低至初始状态的50%时,进入第二阶段,第二阶段温度保持在10℃,直至结晶完成;
C、将步骤B得到的结晶固体与20份的碱式氯化铝、35份的膨润土、10份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、2份的十二烷基二甲基苄基氯化铵和2份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。
作为优选,包括以下步骤:
A、将250份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;将洗涤出的残渣使用浓度为15wt%的醋酸进行浸泡,然后取出处理后的残渣待用;浓缩过程分为两个阶段,第一阶段温度保持在25℃,当结晶速率降低至初始状态的50%时,进入第二阶段,第二阶段温度保持在10℃,直至结晶完成;
C、将步骤B得到的结晶固体与20份的碱式氯化铝、35份的膨润土、10份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、2份的十二烷基二甲基苄基氯化铵和2份的聚环氧乙烷,充分搅拌后加热蒸发,将混悬液加热蒸发至胶状物后,逐渐缓慢加入步骤B待用的残渣,将温度控制在小于40℃,直至蒸发完成得到成品净水剂。
一种有机类净水剂,使用上述的有机类净水剂的生产工艺生产而成。
采用上述技术方案所带来的有益效果在于:本发明通过对海藻原料的深度加工,将海藻中的有效成分充分提取,同时合理配置添加剂,提高了净水剂的吸附效果。
具体实施方式
实施例1
一种有机类净水剂的生产工艺,包括以下步骤:
A、将200份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;
C、将步骤B得到的结晶固体与15份的碱式氯化铝、50份的膨润土、15份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、1份的十二烷基二甲基苄基氯化铵和3份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。
实施例2
一种有机类净水剂的生产工艺,包括以下步骤:
A、将250份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;浓缩过程分为两个阶段,第一阶段温度保持在25℃,当结晶速率降低至初始状态的50%时,进入第二阶段,第二阶段温度保持在10℃,直至结晶完成;
C、将步骤B得到的结晶固体与20份的碱式氯化铝、35份的膨润土、10份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、2份的十二烷基二甲基苄基氯化铵和2份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。
实施例3
一种有机类净水剂的生产工艺,包括以下步骤:
A、将250份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;将洗涤出的残渣使用浓度为15wt%的醋酸进行浸泡,然后取出处理后的残渣待用;浓缩过程分为两个阶段,第一阶段温度保持在25℃,当结晶速率降低至初始状态的50%时,进入第二阶段,第二阶段温度保持在10℃,直至结晶完成;
C、将步骤B得到的结晶固体与20份的碱式氯化铝、35份的膨润土、10份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、2份的十二烷基二甲基苄基氯化铵和2份的聚环氧乙烷,充分搅拌后加热蒸发,将混悬液加热蒸发至胶状物后,逐渐缓慢加入步骤B待用的残渣,将温度控制在小于40℃,直至蒸发完成得到成品净水剂。
使用上述3个实施例制得的净水剂对同一污水样本分别进行净化实验(污水与净水剂的投入比例为300:1,净化时间3小时),结果如下:
组别 浊度(NTU) COD(mg/L) BOD(mg/L)
污水样本 28 66 31
实施例1 4 10 8
实施例2 4 7 3
实施例3 2 5 3
上述描述仅作为本发明可实施的技术方案提出,不作为对其技术方案本身的单一限制条件。

Claims (5)

1.一种有机类净水剂的生产工艺,其特征在于包括以下步骤:
以下份数均为质量份数,
A、将300~500份的海藻粉碎,加入200~300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;
C、将步骤B得到的结晶固体与15~20份的碱式氯化铝、30~50份的膨润土、10~20份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入4~5份的明胶、1~2份的十二烷基二甲基苄基氯化铵和2~3份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。
2.根据权利要求1所述的有机类净水剂的生产工艺,其特征在于包括以下步骤:
A、将200份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;
C、将步骤B得到的结晶固体与15份的碱式氯化铝、50份的膨润土、15份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、1份的十二烷基二甲基苄基氯化铵和3份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。
3.根据权利要求1所述的有机类净水剂的生产工艺,其特征在于包括以下步骤:
A、将250份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;浓缩过程分为两个阶段,第一阶段温度保持在25℃,当结晶速率降低至初始状态的50%时,进入第二阶段,第二阶段温度保持在10℃,直至结晶完成;
C、将步骤B得到的结晶固体与20份的碱式氯化铝、35份的膨润土、10份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、2份的十二烷基二甲基苄基氯化铵和2份的聚环氧乙烷,充分搅拌后加热蒸发,得到成品净水剂。
4.根据权利要求1所述的有机类净水剂的生产工艺,其特征在于包括以下步骤:
A、将250份的海藻粉碎,加入300份的乙酸乙酯后充分搅拌得混合液;
B、使用纯水对步骤A中的混合液进行洗涤后浓缩,得到结晶固体;将洗涤出的残渣使用浓度为15wt%的醋酸进行浸泡,然后取出处理后的残渣待用;浓缩过程分为两个阶段,第一阶段温度保持在25℃,当结晶速率降低至初始状态的50%时,进入第二阶段,第二阶段温度保持在10℃,直至结晶完成;
C、将步骤B得到的结晶固体与20份的碱式氯化铝、35份的膨润土、10份的活性炭进行混合粉碎,然后加入45wt%的乙醇溶液,值得混悬液;
D、在混悬液中加入5份的明胶、2份的十二烷基二甲基苄基氯化铵和2份的聚环氧乙烷,充分搅拌后加热蒸发,将混悬液加热蒸发至胶状物后,逐渐缓慢加入步骤B待用的残渣,将温度控制在小于40℃,直至蒸发完成得到成品净水剂。
5.一种有机类净水剂,其特征在于:使用权利要求1-4任意一项所述的有机类净水剂的生产工艺生产而成。
CN202010077811.7A 2020-01-31 2020-01-31 一种有机类净水剂及生产工艺 Pending CN111068633A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105746512A (zh) * 2016-03-08 2016-07-13 佛山市聚成生化技术研发有限公司 一种季铵盐类水处理杀菌剂
CN105906022A (zh) * 2016-06-22 2016-08-31 陈朝民 一种污水净水剂及其制备方法
CN106083765A (zh) * 2016-05-26 2016-11-09 深圳市海立方生物科技有限公司 一种具有抗菌功能的环保安全清洗剂
CN109052538A (zh) * 2018-08-23 2018-12-21 苗伟宁 多功能净水剂及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105746512A (zh) * 2016-03-08 2016-07-13 佛山市聚成生化技术研发有限公司 一种季铵盐类水处理杀菌剂
CN106083765A (zh) * 2016-05-26 2016-11-09 深圳市海立方生物科技有限公司 一种具有抗菌功能的环保安全清洗剂
CN105906022A (zh) * 2016-06-22 2016-08-31 陈朝民 一种污水净水剂及其制备方法
CN109052538A (zh) * 2018-08-23 2018-12-21 苗伟宁 多功能净水剂及其制备方法

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Application publication date: 20200428