CN105567667A - 一种控制循环水中生物粘泥的生物酶药剂 - Google Patents

一种控制循环水中生物粘泥的生物酶药剂 Download PDF

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CN105567667A
CN105567667A CN201510822901.3A CN201510822901A CN105567667A CN 105567667 A CN105567667 A CN 105567667A CN 201510822901 A CN201510822901 A CN 201510822901A CN 105567667 A CN105567667 A CN 105567667A
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陈维忠
李洪社
喻果
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Weihai Xiang Yu Environmental Protection Science And Technology Co Ltd
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Abstract

本发明提供了一种循环冷却水用生物粘泥控制生物酶药剂及其制备方法:生物酶药剂由α-淀粉酶、枯草杆菌蛋白酶、木瓜蛋白酶、葡萄糖脱氢酶、纤维素酶、果胶酶、胰蛋白酶、溶菌酶及纯水的质量比为2～20:5～40:10～15:10～20:5～10:1～5:5～15:10～20:100～800。将八种生物酶按照一定的质量比复合配制即可得本发明产品。本发明中八种生物酶按一定质量比复配使用，有效控制循环冷却水系统的设备和管道内壁上沉积的生物粘泥生长，还具有杀菌功能，且为纯生物制剂，具有无毒性、无腐蚀性、无致病性的特点，不会存在传统的化学药剂造成二次污染的问题。

Description

一种控制循环水中生物粘泥的生物酶药剂
技术领域
本发明涉及循环冷却水处理药剂，具体涉及一种可有效控制循环冷却水系统中生物粘泥且环保的生物酶制剂。
背景技术
在工业循环水系统的管道、冷却塔、水池等壁上产生的一层粘质膜即通常所称的生物粘泥会对系统水质和设备造成严重危害。粘泥易在金属表面特别是水循环系统中的高温和低流速区沉积，加之一些微生物因其新陈代谢过程也参与了电化学反应，从而加大了对管道和设备的腐蚀程度，使冷却设备传热效率下降，严重时还会导致计划外停车，带来严重的经济损失。另外附着在冷却塔填料表面或填料问的生物粘泥还会降低冷却塔的效率，阻碍保护膜的形成，分解水处理剂，干扰水质的日常控制等。因此,提高控制生物粘泥控制的技术水平，降低能耗，实现资源和设备的良好运用是企业整体经济效益提高的一条重要途径。
现有的粘泥控制剂多为化学合成的杀菌剂与表面活性剂的复配产品，如异噻唑啉酮、布罗波尔、季铵盐、季磷酸盐、戊二醛、氯化十二烷基二甲基苄基铵、聚丙烯酸等主要组分的产品，低剂量时具有良好的微生物杀灭和粘泥控制效果，可在工业循环水领域中应用。上述复配产品的组分均为化学合成药剂，有一定的毒性，对环境均会带来二次污染的问题。
本发明的目的是为了避免对环境带来二次污染，采用生物酶的方法来控制生物粘泥，生物酶具有绿色、高效等特点，通过对生物粘泥进行降解，同时杀灭菌藻，从根本上防止生物粘泥的产生。
发明内容
本发明的目的是为了避免对环境带来二次污染，采用生物酶的方法来控制生物粘泥，提供一种可有效剥离和控制循环冷却水系统的设备和管道内壁上沉积的生物粘泥的生物酶控制剂。
为了达到上述目的，本发明提供了一种用于循环冷却水的生物酶生物粘泥控制剂，由以下质量份数的生物酶组分组成：
生物酶药剂由α-淀粉酶：2～20，
枯草杆菌蛋白酶：5～40，
木瓜蛋白酶:10～15，
葡萄糖脱氢酶:10～20，
纤维素酶:5～10，
果胶酶:1～5，
胰蛋白酶:5～15，
溶菌酶:10～20，
纯水:100～800。
本发明所述的生物酶生物粘泥抑制剂,优选由以下质量份数的生物酶组分组成：α-淀粉酶：15、枯草杆菌蛋白酶：30、木瓜蛋白酶：15、葡萄糖脱氢酶：15、纤维素酶：10、果胶酶：3、胰蛋白酶：5、溶菌酶：20，纯水：700。
本发明还提供了上述生物酶生物粘泥控制剂在循环冷却水系统中的应用，其中所述全生物酶生物粘泥控制剂以每升的循环冷却水为基准，全生物酶生物粘泥控制剂的投入量为30～110mg，进一步优选为40～60mg。
本发明的生物酶生物粘泥控制剂与现有化学合成控制剂相比，具有以下优势：本发明的生物粘泥控制剂为纯生物制剂，具有无毒性、无腐蚀性、无致病性的特点，不会造成二次污染。
实施方式
室温条件下，按照质量比将α-淀粉酶：15、枯草杆菌蛋白酶：30、木瓜蛋白酶：15、葡萄糖脱氢酶：15、纤维素酶：10、果胶酶：3、胰蛋白酶：5、溶菌酶：20，纯水：700搅拌全溶后，得到半透明黄褐色液体的生物酶控制剂，具有酶特有气味。
杀菌性能评价步骤如下：
1样品的采集
1.1采集粘泥装置见图1，图1是采集黏泥装置图；
1.2调节采样装置中阀门，是冷却水的流速控制在0.8m/s左右，水流量在1m3/h左右，然后关上浮游生物网旋塞阀，过滤1m3水；
1.3关闭水阀，取下浮游生物网，打开旋塞阀，将粘泥收集在500mL的量筒内，用自来水冲洗滤网，洗涤液也收集在500mL的量筒内，沉淀30min后倾倒上清液，将剩余浊液转移至25mL的量筒内，静止30min，记录沉淀出的粘你体积；
1.4用无菌吸管移去25mL量筒内的上清液，将量筒内的粘你或部分粘泥转移至洗净并烘干后瓷研钵中，加入约2g的石英砂，充分研磨后转移至1000mL洗净并烘干后的容量瓶中，用无菌稀释水稀释至刻度，充分混匀，并立即进行测试；
2无菌箱（室）灭菌
把试验用的无菌稀释水，无菌培养皿、无菌吸管等用品放入无菌箱（室）内，打开紫外线灯灭菌30min。
3水样的稀释和接种
3.1粘泥水样放入灭菌的无菌箱（室）中，立即用75%乙醇溶液浸泡的医用脱脂棉球擦手，点燃无菌箱（室）内的酒精灯；
3.2选择适宜的稀释度，应使最后一个稀释度接种后培养皿上生长的菌落数小于300个；
3.3用10倍稀释法稀释水样，即用5mL无菌吸管吸取5mL水样注入到45mL空白稀释水中摇匀，此时稀释度为10；
3.4另取一支5mL无菌吸管吸取5mL稀释度为10水样注入到第二个稀释水中，充分摇匀，此时稀释度为10-2，以此类推，直至需要的稀释度为止；
3.5将不同稀释度的水样分别接种到无菌培养皿中，每个稀释度重复接种3～5皿，每皿接种1mL，接种时左手撑托住培养皿，大拇指和食指轻轻将培养皿盖提起，使右手中的吸管恰好插入，吸管与培养皿底成45°相接，移开吸管时吸管不宜再碰到培养皿，接种时间不宜超过4s，每接一个稀释度更换一支无菌吸管；
3.6另取一组培养皿不接种水样，作为空白；
3.7将灭过菌的培养基冷却至（45±1）℃，按（3.5）的方法掀开培养皿盖，将培养基灌入培养皿内，每皿应灌15～20mL，灌皿时不要使培养基直接灌在水样上，灌皿后要将融化的培养基和皿中的水样彻底混合，小心勿使混合液溅到培养皿边缘。测定一个水样从接种到灌皿不得超过20min；
本发明生物酶生物粘泥控制剂性能比较
注：异噻唑啉酮、DBNPA、布罗波尔、季铵盐加药浓度均按照有效成分添加。

Claims (4)

1.本发明提供了一种用于循环冷却水的生物酶生物粘泥控制剂，其特征在于，由以下质量份数的生物酶组分组成:
生物酶药剂由α-淀粉酶：2～20，
枯草杆菌蛋白酶：5～40，
木瓜蛋白酶:10～15，
葡萄糖脱氢酶:10～20，
纤维素酶:5～10，
果胶酶:1～5，
胰蛋白酶:5～15，
溶菌酶:10～20，
纯水:100～800。
2.根据权利要求1所述的生物酶生物粘泥控制剂，其特征在于，由以下质量份数的生物酶组分组成：α-淀粉酶：15、枯草杆菌蛋白酶：30、木瓜蛋白酶：15、葡萄糖脱氢酶：15、纤维素酶：10、果胶酶：3、胰蛋白酶：5、溶菌酶：20，纯水：700。
3.根据权利要求1所述的生物酶生物粘泥控制剂在循环冷却水系统中的应用，其特征在于，以每升的循环冷却水为基准，所述全生物酶生物粘泥控制剂的投入量为30～110mg。
4.根据权利要求1所述的全生物酶生物粘泥控制剂在循环冷却水系统中的应用，其特征在于，所述的生物酶生物粘泥控制剂的投入量为40～60mg。
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