CN202785898U - 一种煤焦油加工废水处理回用的装置 - Google Patents
一种煤焦油加工废水处理回用的装置 Download PDFInfo
- Publication number
- CN202785898U CN202785898U CN 201220192777 CN201220192777U CN202785898U CN 202785898 U CN202785898 U CN 202785898U CN 201220192777 CN201220192777 CN 201220192777 CN 201220192777 U CN201220192777 U CN 201220192777U CN 202785898 U CN202785898 U CN 202785898U
- Authority
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- China
- Prior art keywords
- tank
- pond
- charcoal
- coal tar
- treating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229940108066 Coal Tar Drugs 0.000 title claims abstract description 21
- 239000011280 coal tar Substances 0.000 title claims abstract description 21
- 239000002351 wastewater Substances 0.000 title abstract description 26
- 238000004064 recycling Methods 0.000 title abstract description 5
- 230000001112 coagulant Effects 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 230000003647 oxidation Effects 0.000 claims abstract description 22
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 22
- 239000010802 sludge Substances 0.000 claims abstract description 17
- 238000001556 precipitation Methods 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 10
- 239000003610 charcoal Substances 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
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- 238000010992 reflux Methods 0.000 description 5
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound 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Abstract
本实用新型涉及煤焦油加工废水处理回用技术领域，特别涉及一种煤焦油加工废水处理回用的装置，其特征在于，包括预处理部分、生物处理部分和后处理部分，其具体结构如下：1）预处理部分包括隔油池、气浮池和水解酸化调节池；2）生化处理部分包括短程硝化池、厌氧氨氧化池和好氧生物炭池；3）后处理部分包括混凝沉淀池、污泥浓缩池、压滤设备和砂滤池、活性炭过滤设备、精滤设备。与现有技术相比，本实用新型的有益效果是：通过在调节池内完成水解酸化，提高了废水的生化性。将短程硝化池、厌氧氨氧化池与好氧生物炭池有效组合，强化了生化处理；既解决了煤焦油加工废水出水达标难的问题，又达到了回用的目的。
Description
—种煤焦油加工废水处理回用的装置
技术领域
[0001] 本实用新型涉及煤焦油加工废水处理回用技术领域，特别涉及一种煤焦油加工废水处理回用的装置。
背景技术
[0002] 煤焦油加工生产废水具有高氨氮、高含油、高毒性、低B/C比特点，属于高难度工业废水。目前，国内此类废水的处理方法主要采用A/0和ΑΑ/0工艺，这些工艺针对油类物质主要采用重力分离法、吸附法，油类物质去除率仅为20-30%，处理效果不甚理想，为后续生化处理带来了极大的困难。由于生化系统自身抗冲击负荷能力较脆弱、传统脱氮反应机理的局限性，再加上预处理阶段带来的压力，使得系统出水COD降解不完全、氨氮转化不彻底，处理后出水只能维持在《污水综合排放标准》二级标准，即主要指标为COD ( 150mg/L,·氨氮彡25mg/L。
[0003] 有些企业采用加大稀释焦油废水的方法，使得系统污染物浓度大幅下降，从而出水可以达到《污水综合排放标准》一级排放标准，即主要指标为COD ( 100mg/L，氨氮(15mg/L。但是大量的稀释废水增加了生化站的处理负荷，无形中增加了污水处理的能耗和费用，使企业承受了巨大的经济负担，违背了清洁生产的原则。
发明内容
[0004] 本实用新型的目的是提供一种煤焦油加工废水处理回用的装置，克服现有技术的不足，采用包含预处理、生物处理和后处理的组合工艺，降低煤焦油加工废水中的COD及氨氮值，使出水水质达到国家一级排放标准并可回收再利用。
[0005] 为解决上述技术问题，本实用新型的技术方案是：
[0006] 一种煤焦油加工废水处理回用的装置，包括预处理部分、生物处理部分和后处理部分，其具体结构如下：
[0007] I)预处理部分中，包括隔油池、气浮池和水解酸化调节池，隔油池、气浮池和水解酸化调节池依次连接，气浮池与气浮池加药系统相连；
[0008] 2)生化处理中，包括短程硝化池、厌氧氨氧化池和好氧生物炭池，短程硝化池、厌氧氨氧化池和好氧生物炭池依次连接，好氧生物炭池后接生物炭收集池，生物炭收集池底流管路与好氧生物炭池相连，生物炭收集池溢流与后处理部分相连，短程硝化池、厌氧氨氧化池和好氧生物炭池为一体式建筑，所述短程硝化池和厌氧氨氧化池内均挂有作为填料的纤维束；所述厌氧氨氧化池内设有旋转布水器；
[0009] 3)后处理部分中，包括混凝沉淀池、污泥浓缩池、压滤设备和砂滤池、活性炭过滤设备、精滤设备，混凝沉淀池前设有管道混合器，混凝沉淀池的溢流与砂滤池、活性炭过滤设备及精滤设备依次相连；混凝沉淀池底流与污泥浓缩池、压滤设备依次相连。
[0010] 所述水解酸化调节池池底设有潜水搅拌机。
[0011] 所述管道混合器设有两处加药点，其中在管道混合器前级设有絮凝剂PAC加药装置，在管道混合器中段设有助凝剂PAM加药装置。
[0012] 与现有技术相比，本实用新型的有益效果是：1)这是针对煤焦油加工废水的一种新的组合工艺。2)通过在调节池内完成水解酸化，提高了废水的生化性，达到了“调节水解”的双效功能。3)将短程硝化池、厌氧氨氧化池与好氧生物炭池有效组合，利用了好氧生物炭池的吸附降解功能，强化了生化处理；4)后处理中采用砂滤-活性炭滤-精滤的方式对经混凝沉淀处理后的污水作进一步处理，既解决了煤焦油加工废水出水达标难的问题，又达到了回用的目的。
附图说明
[0013] 图I是本实用新型实施例处理工艺流程不意图。
[0014] 图中：I-预处理部分 II-生化处理部分III-后处理部分 A-煤焦油废水B-重油C-气浮浮渣D-生物炭回流E-剩余污泥F-达标废水外排G-回用水H-压滤液回流K-泥饼外运Pl-废水提升泵P2-好氧进水泵P3-厌氧进水泵P4-生物炭回流泵P5-砂滤进水泵P6-精滤进水泵P7-回用水泵P8-剩余污泥泵P9-为污泥泵BQ-曝气风机BS-旋转布水器 HH-管道混合器I-隔油池2-气浮加药系统3-气浮池4-水解酸化调节池5-短程硝化池6-厌氧氨氧化池7-好氧生物炭池8-生物炭收集池9-絮凝剂PAC加药装置10-助凝剂PAM加药装置11-混凝沉淀池12-砂滤池13-活性炭过滤设备14-精滤设备15-回用水池16-污泥浓缩池17-压滤设备。
具体实施方式
[0015] 下面结合附图对本实用新型的具体实施方式作进一步说明：
[0016] 见图1，是本实用新型一种煤焦油加工废水处理回用工艺流程示意图，这是一种包括预处理、生物处理和后处理的组合工艺方法，其工艺流程如下：
[0017] I)预处理部分I中，处理设备为隔油池I、气浮池3和水解酸化调节池4依次连接而成，煤焦油加工废水A经管网进入隔油池I，池底重油B收集后外运，隔油池I的出水经废水提升泵Pl送至气浮池3，气浮浮渣C收集后外运，气浮加药系统2将配置好的药剂加入气浮池3，气浮池3出水进入水解酸化调节池4，经过隔油池I与气浮池3先将废水中的重油、轻油、乳化油、SS (悬浮物）及部分色度去除，再经过水解酸化调节池4进行水质水量调节，利用水解酸化功能来提高来水的生化性，使废水中环状、长链状的大分子有机物水解成小分子有机物，降低其毒性及难降解性，预处理出水的含油〈10mg/L、SS〈30mg/L、色度〈200倍;
[0018] 水解酸化调节池4池底设有潜水搅拌机，池内投加水解和产酸菌，控制池内水力停留时间（HRT)为8-9小时，温度为30〜35°C，用来提高废水的生化性能。
[0019] 2)生化处理部分II中，处理设备为短程硝化池5、厌氧氨氧化池6和好氧生物炭池7依次连接构成，好氧生物炭池7后接生物炭收集池8，水解酸化调节池4出水经好氧进水泵P2送至短程硝化池5，曝气风机BQ连续为短程硝化池5进行供氧，短程硝化池5出水经厌氧进水泵P3和旋转布水器BS进入厌氧氨氧化池6，厌氧氨氧化池6出水通过重力流进入好氧生物炭池7，好氧生物炭池7出水进入生物炭收集池8，生物炭收集池8通过生物炭回流泵P4将生物炭回流D回流到好氧生物炭池7 ;短程硝化池5、厌氧氨氧化池6和好氧生物炭池7为一体式建筑，短程硝化池5和厌氧氨氧化池6内均挂有纤维束作为填料，利用不同池内的微生物去除煤焦油加工废水中的大部分有机和无机污染物，生化处理后出水水质C0D<100mg/L, NH3_N〈5mg/L，氰化物、挥发酚〈O. 5mg/L ；
[0020] 短程硝化池5内pH为7. 5〜7. 8，温度为30〜35°C，HRT为28〜30h，溶解氧为2.8〜3. 5mg/L,短程硝化池容积负荷低于O. 25gNH4+-N/ (L · d)。
[0021] 厌氧氨氧化池6内温度为33〜37°C，pH为7. 6〜8. 4，溶解氧小于O. 2mg/L，要求进水NH4+/ N02_为（I〜I. 5):1，进水Ν02_-Ν的浓度小于95mg/L ;厌氧氨氧化池进水方式为旋转布水器脉冲布水，使污水与微生物均匀接触。
[0022] 好氧生物炭池7内投加活性炭粒，好氧生物炭池内温度为27〜30°C，pH为7. O〜
7. 5，溶解氧为3〜4mg/L，容积负荷低于O. 12gN02__N / (L · d)。生物炭收集池8的HRT为
I. 5 〜2h。
[0023] 3)后处理部分III中，处理设备为混凝沉淀池11、污泥浓缩池16、压滤设备17和砂滤池12、活性炭过滤设备13、精滤设备14，生物炭收集池8出水通过管道混合器HH进入混凝沉淀池11，絮凝剂PAC加药装置9和助凝剂PAM加药装置10分别将絮凝剂和助凝剂力口到管道混合器HH中，混凝沉淀池11的剩余污泥E经剩余污泥泵P8送至污泥浓缩池16，污泥浓缩池16浓缩后的污泥经污泥泵P9送至压滤设备17，压滤设备17产生的压滤液回流H回流到水解酸化调节池4，压滤设备17的泥饼K外运，混凝沉淀池11出水F可以达标外排，也可以经过砂滤进水泵P5送至砂滤池12，砂滤池12出水进入活性炭过滤设备13，活性炭过滤设备13出水经精滤进水泵P6送至精滤设备14，精滤设备14出水进入回用水池15，回用水池15出水通过回用水泵P7将回用水G送至回用水用户。本工序利用混凝沉淀法和物理过滤法进一步去除废水中的固体含量，处理后出水水质C0D〈70mg/L、SS〈lmg/L/、色度〈15 倍。
[0024] 管道混合器采用两点加药方式，其中在管道混合器HH前级设有絮凝剂PAC加药装置，在管道混合器中段设有助凝剂PAM加药装置，所述PAC配药浓度为3-3. 5%，加药浓度为30-32mg/L，所述的PAM配药浓度为2-2. 5%。，加药浓度为6-8 mg/L。
[0025] 生产中以某煤焦油加工企业(生产规模为26. 5万吨/a)的煤焦油废水处理回用为例：
[0026] I)处理水量：60m3/d
[0027] 2)进水水质，见表I:
[0028]表 I
[0029]
CODcr NH3-N 挥发酌· 氰化物 石油类~悬浮物SS ^^
(mg/L) (mg/L) (mg/L) (mg/L) (倍） （mg/L) (mg/L)
~<4000 <200 <1000 <25 <600 <300 <300 8^10~
[0030] 3)出水水质，见表2:
[0031]表 2
[0032]
[0033] 4)附国家一级排放标准见表3 ：
[0034]表 3
[0035]
[0036] 5)系统主要设计参数：
[0037] ⑴主要构筑物
[0038] 隔油池：5X2X1.5m I座；水解酸化调节池：4X3. 6X2. 5m I座；短程硝化池：6X3. 3X3. 5m 2座；厌氧氨氧化池：6XI X3. 5m 2座；好氧生物炭池：6X6X5m 2座；生物炭收集池：3X2. 4X2. 5m I座；混凝沉淀池：Φ=2πι，H=2. 5m I座；污泥浓缩池：Φ=1. 5m, H=2. 5m I 座；回用水池：3X2. 5X2. 5m I 座。
[0039] ⑵主要设备
[0040]曝气风机：Q=9. 48m3/min, P=12Kff, 2 台（一用一备）；废水提升泵:Q=4m3/h,P=O. 75KW，H=20m, 2 台（一用一备）;好氧进水泵：Q=4m3/h，P=O. 75KW，H=20m, 2 台（一用一备）；厌氧进水泵：Q=4m3/h，P=0. 75KW，H=20m，2 台（一用一备);剩余污泥泵：Q=2. 5m3/h,P=0. 55KW,H=17m, 2 台（一用一备）；生物炭回流泵：Q=2. 5m3/h, P=O. 55KW，H=17m, 2 台（一用一备）；污泥泵：Q=2. 5m3/h，P=O. 55KW, H=17m，2 台(一用一备);回用水泵:Q=4m3/h，P=O. 75KW, H=20m, 2台（一用一备）；加药泵：Q=25L/h, P=O. 25KW，4台（两用两备);气浮设备：Q= 3m3/h，主机功率3. 6KW，挂渣功率O. 37KW，空压机功率1.5KW，溶气泵功率O. 75KW (—台）;石英砂过滤罐：Φ=0· 8m, H=2m, 2 个;活性炭过滤罐:Φ=0· 8m, H=2m, 2 个；精滤罐：Φ=0. 8m, H=2m, 2 个；压滤机：Q=2m3/h, P=I. 5Kff0
Claims (3)
1. 一种煤焦油加工废水处理回用的装置，其特征在于，包括预处理部分、生物处理部分和后处理部分，其具体结构如下： 1)预处理部分中，包括隔油池、气浮池和水解酸化调节池，隔油池、气浮池和水解酸化调节池依次连接，气浮池与气浮池加药系统相连； 2)生化处理中，包括短程硝化池、厌氧氨氧化池和好氧生物炭池，短程硝化池、厌氧氨氧化池和好氧生物炭池依次连接，好氧生物炭池后接生物炭收集池，生物炭收集池底流管路与好氧生物炭池相连，生物炭收集池溢流与后处理部分相连，短程硝化池、厌氧氨氧化池和好氧生物炭池为一体式建筑，所述短程硝化池和厌氧氨氧化池内均挂有作为填料的纤维束；所述厌氧氨氧化池内设有旋转布水器； 3)后处理部分中，包括混凝沉淀池、污泥浓缩池、压滤设备和砂滤池、活性炭过滤设备、精滤设备，混凝沉淀池前设有管道混合器，混凝沉淀池的溢流与砂滤池、活性炭过滤设备及精滤设备依次相连；混凝沉淀池底流与污泥浓缩池、压滤设备依次相连。
2.根据权利要求I所述一种煤焦油加工废水处理回用的装置，其特征在于，所述水解酸化调节池池底设有潜水搅拌机。
3.根据权利要求I所述一种煤焦油加工废水处理回用的装置，其特征在于，所述管道混合器设有两处加药点，其中在管道混合器前级设有絮凝剂PAC加药装置，在管道混合器中段设有助凝剂PAM加药装置。
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| CN104193037A (zh) * | 2014-09-16 | 2014-12-10 | 王茜茜 | 一种可生产沥青的焦油废水净化装置 |
| CN106745972A (zh) * | 2016-12-09 | 2017-05-31 | 环境保护部华南环境科学研究所 | 一种含油乳化液废水现场应急深度处理装置及工艺 |
| CN108264186A (zh) * | 2017-12-29 | 2018-07-10 | 乐山海天水务有限公司 | 一种对含氮污水进行回收利用的方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104193037A (zh) * | 2014-09-16 | 2014-12-10 | 王茜茜 | 一种可生产沥青的焦油废水净化装置 |
| CN106745972A (zh) * | 2016-12-09 | 2017-05-31 | 环境保护部华南环境科学研究所 | 一种含油乳化液废水现场应急深度处理装置及工艺 |
| CN108264186A (zh) * | 2017-12-29 | 2018-07-10 | 乐山海天水务有限公司 | 一种对含氮污水进行回收利用的方法 |
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