CN102762504B - 废水污泥消毒的方法 - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000000249 desinfective effect Effects 0.000 title abstract 2
- 239000010801 sewage sludge Substances 0.000 title abstract 2
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 24
- 239000010802 sludge Substances 0.000 claims description 18
- 230000001954 sterilising effect Effects 0.000 claims description 18
- 239000002351 wastewater Substances 0.000 claims description 16
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 239000003337 fertilizer Substances 0.000 abstract description 3
- 239000010842 industrial wastewater Substances 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 239000010840 domestic wastewater Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 241000894006 Bacteria Species 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000003206 sterilizing agent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- GYICYQJEVCIYJY-UHFFFAOYSA-N thiophen-1-ylidenemethanone Chemical compound O=C=S1C=CC=C1 GYICYQJEVCIYJY-UHFFFAOYSA-N 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
- C02F11/185—Treatment of sludge; Devices therefor by thermal conditioning by pasteurisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/063—Underpressure, vacuum
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
本发明涉及一种对生活污水和工业废水进行消毒以用作有机矿物质肥料主要成分的技术。该消毒方法是通过使用贮水槽和高速阀在废水污泥上运用高速脉冲真空作用实施，其中脉冲持续时间不多于1.0秒、在压力不大于20mm汞柱下进行直到达到期望的消毒水平。使用本发明的技术成果是加速消毒过程，简化方法。
Description
本发明涉及一种对生活污水和工业废水进行消毒以用作农业有机矿物质肥料主要成分的技术。
目前在用的废水污泥的消毒方法包括污泥初步干燥、颗粒化和热处理。热处理在流化床中分两阶段实施，当使用烟道气作为加热介质、供给温度为200-400℃时，流化床中第一阶段的温度保持在60-80℃，烟道气流速为5-12m/s，流化床中第二阶段的温度保持在120-140℃，随后颗粒被冷却并且流化床中净化的废气用于控制和保持温度[俄罗斯专利No2075198，C02F1/50]。
该方法的缺点是高的加热介质流速和复杂的工艺流程。
目前在用的废水污泥消毒方法通过好氧稳定化的方式防止引起寄生微生物疾病。杀虫制剂溶液加入到污泥湿度为94-95％的好氧稳定器中，该溶液由粉碎干化的马铃薯制备，消耗速率为每立方米污泥加入0.001-0.1g干制剂。通过好氧稳定化和制剂的联合作用在寄生虫卵上的时间至少8小时。[俄罗斯专利No2120421，C02F11/00]。
但是，该方法需要相当多的时间而且不够高效。
目前在用的一种废水污泥消毒方法，实行该方法期间，来自初沉池的污泥和初步干燥的活性污泥与添加物质、砂和消毒剂(噻酮或氨水)混合，进一步干燥得到湿度为60％的产物并且处置作为肥料[前苏联授权专利No842057，C02F11/00]
该方法的缺点是使用噻酮或氨水作为消毒剂，其增加了运行费用且得到的处置产物环境不安全。
与本发明最接近的技术是下面的废水污泥消毒方法(废物)[俄罗斯专利No2031086，C02F11/18]
要消毒的废物被磨碎、混合、装入到容器中并在活塞和阀门之间建立密封的空间，在压力为0.4-1.0MPa下通过阀门供应空气1-5分钟，然后产生1-6分钟的0.01-0.03MPa的真空。
该方法的缺点是消毒工艺的持续时间。
同样，该方法对设备和自动控制系统有较高的要求，这与压力的使用和在容器中产生变化的压力和真空度有关。
另外，该消毒工艺由于在真空处理之前必须首先在压力下放气而产生时间延迟。
本发明的目的是使生活污水和工业废水污泥的消毒工艺加速以及简化方法，该方法的简化与使用低强度和较少金属消耗的设备有关。
通过利用真空进行废水污泥的消毒方法完成要解决的任务，通过接受器、高速阀和管道的高速真空脉冲产生真空，其脉冲持续时间少于1.0秒，并在真空系统中不多于20mm汞柱的残留压力下获得期望的消毒程度。
在该方法中，容器中的废水污泥暴露于高速真空脉冲中，其产生有害细菌难以承受的减压导致细菌的毁灭和死亡。与现有技术相比，其产生的消毒工艺耗时缩短。而且容器中不存在额外的(高)压力，使其可能使用低强度和金属消耗较低的设备。也排除了在压力下放气的必要性。
我们已经用实验方法证明了只有用本发明的的方式实施该废水污泥消毒工艺能解决本发明的问题。
根据土壤生物学标准的要求和考虑现有设备的能力，废水污泥消毒方式的选择实验确定以达到的消毒的必要强度。
该废水污泥消毒的方法以以下方式实施。
废水污泥放置到消毒容器中，通过管道将高速阀门与接受器连接，在消毒容器不大于20mm汞柱的残留压力下以少于1.0秒的脉冲持续时间产生高速真空脉冲作用。
如实验所示，废水污泥消毒的期望程度是在10-15秒内完成。
所述的方法通过实验数据证明。
未消毒的废水污泥的研究结果(见表#1)如下所示：
表#1
注意：*大肠菌指标-E-coil的细菌
**LR FC/4022-联邦中心的法规。
用本方法消毒的废水污泥的研究结果(见表#2)，(脉冲持续时间1.0秒，容器中残留压力15-20mmHg)
表#2
从表格数据的对比可以看出，消毒程度高于104倍。
因此，本方法使工艺加速成为可能，它节约时间、对废水污泥的消毒质量可靠，减少了额外设备的必要，且容易使用。
Claims (1)
1.一种依靠真空处理对废水污泥消毒的方法，其中所述真空用不多于1.0秒的脉冲持续时间、在不大于20mm汞柱的残留压力下，使用接收器、高速阀和管道通过高速真空脉冲作用产生，直到达到消毒的必要强度。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009148221/05A RU2428385C1 (ru) | 2009-12-25 | 2009-12-25 | Способ обеззараживания осадков сточных вод |
| RU2009148221 | 2009-12-25 | ||
| PCT/RU2010/000763 WO2011078742A1 (ru) | 2009-12-25 | 2010-12-16 | Способ обеззараживания осадков сточных вод |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102762504A CN102762504A (zh) | 2012-10-31 |
| CN102762504B true CN102762504B (zh) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080059427.9A Expired - Fee Related CN102762504B (zh) | 2009-12-25 | 2010-12-16 | 废水污泥消毒的方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8465652B2 (zh) |
| EP (1) | EP2518026B1 (zh) |
| JP (1) | JP5850852B2 (zh) |
| KR (1) | KR101861642B1 (zh) |
| CN (1) | CN102762504B (zh) |
| RU (1) | RU2428385C1 (zh) |
| WO (1) | WO2011078742A1 (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2493112C1 (ru) * | 2012-04-26 | 2013-09-20 | Закрытое Акционерное Общество "Твин Трейдинг Компани" | Способ обезвоживания осадков |
| RU2663288C1 (ru) * | 2017-07-24 | 2018-08-03 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный медицинский университет им. Н.Н. Бурденко" Министерства здравоохранения Российской Федерации | Установка для обеззараживания объектов |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2490624B1 (zh) * | 1980-09-24 | 1982-11-05 | Armor Entr Metallurg | |
| SU1330081A1 (ru) * | 1985-12-10 | 1987-08-15 | Совхоз "Огре" | Способ обработки отходов |
| RU2015633C1 (ru) * | 1991-09-20 | 1994-07-15 | Михалев Сергей Александрович | Способ переработки отходов животноводческих комплексов и устройство для его осуществления |
| RU2031086C1 (ru) * | 1992-04-09 | 1995-03-20 | Петр Зиновьевич Кащи | Способ обработки органических отходов и устройство для его осуществления |
| CN1623447A (zh) * | 2004-12-09 | 2005-06-08 | 江南大学 | 一种共同作用式食品生化处理设备 |
| WO2005067984A1 (en) * | 2004-01-16 | 2005-07-28 | Cisa S.P.A. | Vacuum sterilization process and devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2120421A5 (zh) | 1970-12-30 | 1972-08-18 | Michelin & Cie | |
| US3718582A (en) * | 1971-03-23 | 1973-02-27 | E Smith | Microbial biolysis process |
| SU842057A1 (ru) | 1979-09-06 | 1981-06-30 | Центральный Научно-Исследовательскийи Проектно-Экспериментальный Институтинженерного Оборудования Городов,Жилых И Общественных Зданий | Способ обработки осадков сточныхВОд |
| US5527508A (en) * | 1992-11-12 | 1996-06-18 | American Sterilizer Company | Method of enhanced penetration of low vapor pressure chemical vapor sterilants during sterilization |
| JP2684313B2 (ja) * | 1993-04-22 | 1997-12-03 | 川崎重工業株式会社 | 有機性汚泥の減量化方法 |
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2009
- 2009-12-25 RU RU2009148221/05A patent/RU2428385C1/ru active
-
2010
- 2010-12-16 US US13/517,058 patent/US8465652B2/en not_active Expired - Fee Related
- 2010-12-16 JP JP2012545896A patent/JP5850852B2/ja not_active Expired - Fee Related
- 2010-12-16 WO PCT/RU2010/000763 patent/WO2011078742A1/ru active Application Filing
- 2010-12-16 CN CN201080059427.9A patent/CN102762504B/zh not_active Expired - Fee Related
- 2010-12-16 KR KR1020127019573A patent/KR101861642B1/ko active IP Right Grant
- 2010-12-16 EP EP10839874.4A patent/EP2518026B1/en not_active Not-in-force
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| FR2490624B1 (zh) * | 1980-09-24 | 1982-11-05 | Armor Entr Metallurg | |
| SU1330081A1 (ru) * | 1985-12-10 | 1987-08-15 | Совхоз "Огре" | Способ обработки отходов |
| RU2015633C1 (ru) * | 1991-09-20 | 1994-07-15 | Михалев Сергей Александрович | Способ переработки отходов животноводческих комплексов и устройство для его осуществления |
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| CN1623447A (zh) * | 2004-12-09 | 2005-06-08 | 江南大学 | 一种共同作用式食品生化处理设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5850852B2 (ja) | 2016-02-03 |
| KR101861642B1 (ko) | 2018-05-29 |
| EP2518026A1 (en) | 2012-10-31 |
| WO2011078742A1 (ru) | 2011-06-30 |
| EP2518026B1 (en) | 2016-08-10 |
| KR20120139682A (ko) | 2012-12-27 |
| EP2518026A4 (en) | 2013-07-17 |
| US20120248044A1 (en) | 2012-10-04 |
| US8465652B2 (en) | 2013-06-18 |
| CN102762504A (zh) | 2012-10-31 |
| RU2428385C1 (ru) | 2011-09-10 |
| JP2013515597A (ja) | 2013-05-09 |
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