CN103274546B - 印染废水清浊分离与余热利用系统 - Google Patents
印染废水清浊分离与余热利用系统 Download PDFInfo
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- CN103274546B CN103274546B CN201310212918.8A CN201310212918A CN103274546B CN 103274546 B CN103274546 B CN 103274546B CN 201310212918 A CN201310212918 A CN 201310212918A CN 103274546 B CN103274546 B CN 103274546B
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- ZRALSGWEFCBTJO-UHFFFAOYSA-N guanidine Chemical compound 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Abstract
本发明提供了一种印染废水清浊分离与余热利用系统，包括用于排放低浓度废热水的低浓度排水管和用于排放高浓度废热水的高浓度排水管，低浓度排水管，低浓度排水管上设有控制阀Ⅰ，高浓度排水管上设有控制阀Ⅱ，还包括与低浓度排水管连通的废热水收集池Ⅰ和与高浓度排水管连通的废热水收集池Ⅱ，还包括用于对废热水收集池Ⅰ内的废热水进行换热的热交换器Ⅰ和用于对废热水收集池Ⅱ内的废热水进行换热的热交换器Ⅱ。本发明既能将高浓度和低浓度废水分开处理，又能充分利用废水的热能，实现能源的高效利用，节能环保。
Description
技术领域
[0001] 本发明涉及印染废水利用领域，具体涉及一种印染废水清浊分离与余热利用系 统。 印染废水清浊分离与余热利用系统
背景技术
[0002] 现有印染企业废水排放时一般是所有废水一起排至废水池，因为在不同工序中产 生的废水浓度、C0D不同，而有些低浓度废水可以采用成本相对较低的处理工艺进行处理， 但是所有废水一起排至废水池后不仅增加了废水处理的工作量和处理成本，而且造成资源 浪费，不利于节能环保，而且，有些印染设备会产生温度高达80°C以上的高温废水，若直接 排人废水池中，会使处理系统中废水温度高达46°C以上，既降低生化处理效率，也造成能源 浪费。
发明内容
[0003] 本发明所要解决的技术问题在于提供一种印染废水清浊分离与余热利用系统，既 能将高浓度和低浓度废水分开处理，又能充分利用废水的热能，实现能源的高效利用，节能 环保。
[0004] 为解决上述现有的技术问题，本发明采用如下方案：印染废水清浊分离与余热利 用系统，包括用于排放低浓度废热水的低浓度排水管和用于排放高浓度废热水的高浓度排 水管，低浓度排水管，低浓度排水管上设有控制阀I，高浓度排水管上设有控制阀II，还包 括与低浓度排水管连通的废热水收集池I和与高浓度排水管连通的废热水收集池II，还包 括用于对废热水收集池I内的废热水进行换热的热交换器I和用于对废热水收集池II内 的废热水进行换热的热交换器II。
[0005] 作为优选，控制阀I和控制阀II由电控系统控制工作。
[0006] 作为优选，废热水收集池I内设有保温夹层。
[0007] 作为优选，废热水收集池I的内底壁为斜面。
[0008] 有益效果：
[0009] 本发明采用上述技术方案提供的印染废水清浊分离与余热利用系统，既能将高浓 度和低浓度废水分开处理，又能充分利用废水的热能，实现能源的高效利用，节能环保。
附图说明
[0010] 图1为本发明的结构示意图；
[0011] 图2为本发明中废热水收集池I的结构示意图。
具体实施方式
[0012] 如图1所示，印染废水清浊分离与余热利用系统，包括用于排放低浓度废热水的 低浓度排水管1和用于排放高浓度废热水的高浓度排水管2,低浓度排水管1，低浓度排水 管1上设有控制阀I3,高浓度排水管2上设有控制阀II4,控制阀I3和控制阀II4由电 控系统9控制工作，还包括与低浓度排水管1连通的废热水收集池I5和与高浓度排水管 2连通的废热水收集池II6,还包括用于对废热水收集池I5内的废热水进行换热的热交换 器I7和用于对废热水收集池II6内的废热水进行换热的热交换器II8。
[0013] 如图2所示，废热水收集池I5侧壁内设有保温夹层10,废热水收集池I5内底壁 避免为斜面，斜面最下端设有带门19的开口，便于清理废热水收集池I5底部沉积的污泥， 门由气缸驱动开闭。废热水收集池II6结构与废热水收集池I5类似。
[0014] 本实施例中，印染设备排出热废水后，相关人员根据经验或用水质检测设备如C0D 检测仪器对热废水进行检测并根据检测结果开启低浓度排水管1上的控制阀I3使废热水 进入废热水收集池I5或开启高浓度排水管2上的控制阀II4使废热水进入废热水收集池 II6,对于进入废热水收集池I5内的废热水，通过热水泵抽至热交换器I7的供热介质输 入端，热交换器I7的供热介质输出端连接至废水处理系统I，热交换器I7的吸热介质输 入端连接供水设备，热交换器I7的吸热介质输出端连接至锅炉或用水设备，同样对于进 入废热水收集池II6内的废热水，通过热水泵抽至热交换器II8的供热介质输入端，热交 换器II8的供热介质输出端连接至废水处理系统II，热交换器II8的吸热介质输入端连接 供水设备，热交换器II8的吸热介质输出端连接至锅炉或用水设备，供热介质是指高温被 换热介质，吸热介质指低温用于换取供热介质热量的介质；废水处理系统I指污水净化池 11、与污水净化池11连通的沉淀池12、与沉淀池连通的过滤设备13以及与过滤设备连通 的离子交换器14,离子交换器连通至锅炉或用水设备；废水处理系统II指厌氧反应器15、 与厌氧反应器连通的混凝脱色池16、与混凝脱色池连通的悬浮生物滤池17、以及与悬浮生 物滤池连通的过滤系统18,过滤系统连通至用水设备；废水处理系统I的工作过程为：换 热后的低浓度废水从热交换器I7的供热介质输出端流至污水净化池11净化处理后流至 沉淀池12沉淀、再经过滤设备13如滤网、精密过滤器等过滤后支离子交换器14去除水中 钙离子、镁离子，制取软化水后供至用水设备；废水处理系统II的工作过程为：换热后的高 浓度废水从热交换器II8的供热介质输出端经高效低耗的厌氧反应器进行厌氧处理，厌氧 反应器优选厌氧折流板反应器，厌氧折流板反应器的上部安装组合生物载体，下部添加粒 状生物载体填料，既能将厌氧污泥拦截保留在每个反应室中，且形成的粒状污泥在反应器 中随上升水流形成膨胀污泥床层，保持大量污泥同时获得较好的泥水接触条件，大幅度提 高有机污染物去除率及改善废水的可生化性，其色度、C0D去除率均达50%以上，厌氧效果 得以强化；再经混凝脱色池进行混凝脱色处理以及悬浮生物滤池过滤处理，混凝脱色使用 的混凝脱色剂，是通过在合成双氰胺甲醛缩合树脂的过程中，引人一定量的金属无机盐和 淀粉或淀粉衍生物，与缩合的胍类树脂接枝共聚，以增大分子质量及阳离子度，该高效有机 混凝脱色剂处理印染废水的脱色效果好，固液分离快，产泥量少，其C0D、色度的去除率分别 为65%和96%以上，污泥产生量较传统混凝剂大大减少；悬浮生物滤池是在BAF(曝气生物 滤池）的基础上利用不同比重的粒状填料研发而成的，它既有BAF的优点，又不易堵塞。由 于在水中填料呈膨胀状态，填料上所附着的生物量更大，活性更高，能强化有机污染物的去 除，尤其对低污染负荷的废水有极高的处理效率，可将废水C0D降至40mg/L以下，为废水 回用奠定了基础；再采用微絮凝一超滤膜预处理工艺，以最大限度地降低废水浊度、色度和 有机污染物浓度，提高进膜水质要求；最后采用低压NF膜分离技术脱除无机盐和残余的有 机物，低成本地实现废水的循环利用。微絮凝一超滤作为膜分离单元前的深度过滤单元，可 将水中污染物降至极低，确保膜分离单元的进水水质，延长膜使用寿命，尽可能降低膜材损 耗。废水经前述处理后，其中污染物浓度已很低，选用适当低压NF膜作为废水回用终端单 元，用于脱除无机盐和残余的有机物，使其既能满足印染工艺用水要求，又尽可能取得大的 膜通量，减少运行费用和投资。
Claims (1)
1.印染废水清浊分离与余热利用系统，其特征在于：包括用于排放低浓度废热水的低 浓度排水管（1)和用于排放高浓度废热水的高浓度排水管（2)，所述低浓度排水管（1 )，所 述低浓度排水管（1)上设有控制阀I(3)，所述高浓度排水管（2)上设有控制阀II(4)，还包 括与低浓度排水管（1)连通的废热水收集池I(5)和与高浓度排水管（2)连通的废热水收 集池II(6)，还包括用于对废热水收集池I(5)内的废热水进行换热的热交换器I(7)和用 于对废热水收集池II(6)内的废热水进行换热的热交换器II(8)，所述控制阀I(3)和控制 阀II(4)由电控系统（9)控制工作，所述废热水收集池I(5)内设有保温夹层（10)，所述废 热水收集池I(5)的内底壁壁面为斜面。
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| CN202131490U (zh) * | 2011-07-18 | 2012-02-01 | 浙江莱美纺织印染科技有限公司 | 一种印染废水回用及余热利用装置 |
| CN202303331U (zh) * | 2011-09-08 | 2012-07-04 | 浙江莱美纺织印染科技有限公司 | 一种锅炉尾气余热回收装置 |
| CN202521938U (zh) * | 2012-03-20 | 2012-11-07 | 北京科技大学 | 热泵系统及干燥系统 |
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| CN202131490U (zh) * | 2011-07-18 | 2012-02-01 | 浙江莱美纺织印染科技有限公司 | 一种印染废水回用及余热利用装置 |
| CN202303331U (zh) * | 2011-09-08 | 2012-07-04 | 浙江莱美纺织印染科技有限公司 | 一种锅炉尾气余热回收装置 |
| CN202521938U (zh) * | 2012-03-20 | 2012-11-07 | 北京科技大学 | 热泵系统及干燥系统 |
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Denomination of invention: Printing and dyeing wastewater pure-turbid separating and waste heat utilizing system Effective date of registration: 20141204 Granted publication date: 20141008 Pledgee: Bank of Huzhou, Limited by Share Ltd, Changxin branch Pledgor: Zhejiang Laimei Textile and Printing & Dyeing Sci-tech Co., Ltd. Registration number: 2014330000055 |
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Address after: 313109 Zhejiang city of Huzhou province Changxing County Jia Pu Industrial Park No. 9 Zhejiang Lummy textile printing and Dyeing Technology Co. Ltd. Patentee after: Laimei Sci-tech Inc. Address before: 313109 Zhejiang city of Huzhou province Changxing County Jia Pu Industrial Park No. 9 Zhejiang Lummy textile printing and Dyeing Technology Co. Ltd. Patentee before: Zhejiang Laimei Textile and Printing & Dyeing Sci-tech Co., Ltd. |