CN103848491A - Killing method of red nematodes in biological aerated filter - Google Patents
Killing method of red nematodes in biological aerated filter Download PDFInfo
- Publication number
- CN103848491A CN103848491A CN201410117220.2A CN201410117220A CN103848491A CN 103848491 A CN103848491 A CN 103848491A CN 201410117220 A CN201410117220 A CN 201410117220A CN 103848491 A CN103848491 A CN 103848491A
- Authority
- CN
- China
- Prior art keywords
- hydrogen peroxide
- aerated filter
- biological aerated
- red
- water
- 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.)
- Pending
Links
Abstract
The invention relates to the technical field of sewage treatment and particularly relates to a killing method of red nematodes in a biological aerated filter. The killing method comprises the following steps: adding hydrogen peroxide into the biological aerated filter for being uniformly stirred; and treating water in the biological aerated filter for 10 minutes-20 minutes by using ultrasonic waves with frequency of 80Hz-90Hz and power of 100W. Adding amount of the hydrogen peroxide is 8mg/L-10mg/L. Ultrasonic waves with frequency of 80Hz-90Hz are compounded with the hydrogen peroxide to treat the red nematodes in the biological aerated filter, wherein treatment time is 10 minutes-20 minutes, and death rate of infant red nematodes within 2 hours can reach 80%, the infant red nematodes can be completely killed within 4 hours, and the death rate of the adult red nematodes reaches 100% within 8 hours; the water quality of the treated outlet water of the biological aerated filter is obviously improved. The method disclosed by the invention has the advantages which cannot be matched by a chemical method, the hydrogen peroxide is decomposed with time and temperature, so that not only are any chemical substances added into water, but also oxidative degradation ability of a biological film is not extremely damaged; meanwhile, the method is economical and cost-saving.
Description
technical field
The present invention relates to technical field of sewage, particularly the killing method of red line worm in a kind of BAF.
background technology
In recent years, due to water pollution and water quality deterioration, some utilize biotechnology to carry out a large amount of hydrobionts of normal appearance in the municipal sewage plant of sewage disposal, and these hydrobionts can have influence on whole biological treatment system, when serious, can affect effluent quality, cause water outlet not up to standard.
In April, 2010, a large amount of red linear small worms (being referred to as below red line worm) of outburst in husky battalion of Dongying city aeration biofilter of sewage treatment plant, the long 1～5cm of body.The top of this biology biologic chain in BAF, the microbial film of eating in a large number, has a strong impact on effluent quality.Through identifying, this kind of one that red line Eimeria belongs in oligochaetes, silk thread earthworm, is mainly distributed in ocean, belongs to ocean class bottom-dwelling.
At present mainly concentrate on feedwater field for the control techniques of red line worm.In sewage field, the research contents of red line worm concentrates on mud decrement aspect mostly, and the research aspect control rarely has report.And for the red line worm in BAF, adopt conventional chemical sterilizing agent no doubt red line worm to be had to killing effect, but also have larger infringement for microbial film, in killing red line worm, also can affect the normal operation in filter tank.In recent years, some physical control technology were arisen at the historic moment, for example ultrasonic wave algal control technology, but the research that utilizes ultrasonic wave to carry out the control of red line worm rarely has report.
Publication number is that CN101643268A discloses a kind of ultrasound-ozone in conjunction with the water treatment method of killing red worm.But needing the red line worm solving in this red worm and the present invention, is not same kind, bio-physiological activity etc. are all different, and therefore, this open source literature can not provide any help to the problem to be solved in the present invention.
Notification number is that CN100337538C discloses a kind of method that uses supersonic killing to shake mosquito larvae, but shake mosquito larvae with the present invention in need solve red line worm, it not same kind, bio-physiological activities etc. are all different, therefore, this open source literature can not provide any help to the problem to be solved in the present invention.
summary of the invention
In order to solve in above prior art the problem without good plan to the control of red line worm, the invention provides a kind of use and ultrasonicly combine to the method that in BAF, red line worm is killed with hydrogen peroxide.
The present invention obtains by following steps:
In BAF, a killing method for red line worm, adds hydrogen peroxide in BAF and stirs, frequency of utilization 80-90Hz, and the ultrasonic wave of power 100W, processes the water 10 ~ 20min in BAF.
Described killing method, preferably the add-on of hydrogen peroxide is 8-10mg/L.
Described killing method, preferably, after supersound process, goes out red line worm corpse, in order to avoid result in blockage.
The object of this invention is to provide a kind of method of utilizing ultrasonic technology to kill red line worm, in order to solve Sha Ying sewage work spring red line worm burst period effluent of aeration biological filter water quality be difficult to situation up to standard.Conventional chemical medicament is killed the existing correlative study of red line worm, adds potassium permanganate 15mg/L, duration of contact 1h, red nemic death rate is 60%.But utilize chemical agent to kill two large shortcomings, the one, economical load weight, the 2nd, chemical agent to biomembranous destructive force also clearly, is difficult to guarantee effluent quality equally.
Beneficial effect of the present invention:
Red line worm in the compound dioxygen water treatment aeration of the ultrasonic wave biological filter of frequency of utilization 80-90Hz of the present invention, treatment time 10-20min, red nematode larval mortality ratio in 2h just can reach 80%, 4h just can all be killed, and adult mortality ratio in 8h reaches 100%; The effluent of aeration biological filter water quality of treated mistake is clearly better; The method has the incomparable superiority of chemical method, and hydrogen peroxide can decompose along with time and temperature, in neither can feeding water, adds any chemical substance, the excessive oxidative degradation ability of disrupting biofilm not again, and economic cost is economized simultaneously.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described:
embodiment 1:
Hydrogen peroxide is added in BAF and stirred, the add-on 10mg/L of hydrogen peroxide, frequency of utilization 90Hz, the ultrasonic wave of power 100W, processes the water 20min in BAF.After supersound process, strengthen back washing strength, red line worm corpse is gone out, in order to avoid result in blockage.Red nematode larval just can reach 85%, 3.5h in 2h mortality ratio just can all be killed, and adult reaches 100% in 7h mortality ratio.
embodiment 2:
Hydrogen peroxide is added in BAF and stirred, the add-on 8mg/L of hydrogen peroxide, frequency of utilization 80Hz, the ultrasonic wave of power 100W, processes the water 10min in BAF.After supersound process, strengthen back washing strength, red line worm corpse is gone out, in order to avoid result in blockage.Red nematode larval just can reach 80%, 4h in 2h mortality ratio just can all be killed, and adult reaches 100% in 8h mortality ratio.
comparative example 1:
Compare with embodiment 1, the water of identical water quality only uses hydrogen peroxide to process, and does not use ultrasonicly, and red nematode larval reaches 40% in 10h mortality ratio, and adult reaches 80% in 24h mortality ratio.
comparative example 2:
Compare with embodiment 1, the water of identical water quality only uses ultrasonic processing, and does not use hydrogen peroxide, and red nematode larval reaches 35% in 10h mortality ratio, and adult reaches 75% in 24h mortality ratio.
comparative example 3:
Compare with embodiment 1, the water of identical water quality, adds potassium permanganate 10mg/L, use ultrasonic processing, ultrasonic frequency 90Hz, power 100W simultaneously, red nematode larval reaches 60% in 2h mortality ratio, and adult reaches 89% in 7h mortality ratio, reaches 100% in 10h mortality ratio.
comparative example 4:
Compare with embodiment 1, the water of identical water quality, adds potassium permanganate 10mg/L to process, and red nematode larval reaches 70% in 2h mortality ratio, and adult reaches 93% in 7h mortality ratio, reaches 100% in 9h mortality ratio.
From above embodiment, data can be found out, the fiting effect that ultrasonic wave and hydrogen peroxide are used in conjunction with will be better than the fiting effect of ultrasonic wave and potassium permanganate far away.Therefore, ultrasonic wave coordinates and kills red line worm with hydrogen peroxide, has produced unforeseeable technique effect.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not subject to the restriction of embodiment; other is any does not deviate from change, modification, the combination made under spirit of the present invention and principle, substitute, simplify and all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (3)
1. a killing method for red line worm in BAF, is characterized in that hydrogen peroxide to add in BAF and stir, frequency of utilization 80-90Hz, and the ultrasonic wave of power 100W, processes the water 10 ~ 20min in BAF.
2. killing method according to claim 1, the add-on that it is characterized in that hydrogen peroxide is 8-10mg/L.
3. killing method according to claim 1 and 2, is characterized in that after supersound process, red line worm corpse is gone out, in order to avoid result in blockage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117220.2A CN103848491A (en) | 2014-03-27 | 2014-03-27 | Killing method of red nematodes in biological aerated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117220.2A CN103848491A (en) | 2014-03-27 | 2014-03-27 | Killing method of red nematodes in biological aerated filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103848491A true CN103848491A (en) | 2014-06-11 |
Family
ID=50856668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410117220.2A Pending CN103848491A (en) | 2014-03-27 | 2014-03-27 | Killing method of red nematodes in biological aerated filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103848491A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213717A (en) * | 2021-06-21 | 2021-08-06 | 杭州余杭城西净水有限公司 | Method for killing red nematodes in sewage treatment system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198408A (en) * | 1997-05-06 | 1998-11-11 | 核心株式会社 | Rapid purifying method using ozonized water of high concentration |
| CN1699204A (en) * | 2005-06-07 | 2005-11-23 | 南开大学 | Control technology for tubificidae in tap water |
| CN201089732Y (en) * | 2007-08-14 | 2008-07-23 | 李盈庭 | Strong ultrasound wave water treatment system |
| CN101326126A (en) * | 2005-10-11 | 2008-12-17 | 有限会社K2R | Apparatus for production of water through photocatalytic reaction |
| CN201284498Y (en) * | 2008-10-06 | 2009-08-05 | 俞建平 | Air cavity-enclosed roof water tank |
| CN101643268A (en) * | 2009-09-04 | 2010-02-10 | 沈阳师范大学 | Water treatment method for killing red worms with ultrasound-ozone |
| CN101851037A (en) * | 2010-05-28 | 2010-10-06 | 深圳市水务(集团)有限公司 | Method for inactivating invertebrates in water supply system and application thereof |
| CN102167421A (en) * | 2011-03-04 | 2011-08-31 | 广州市碧滔环保科技有限公司 | Frequency conversion direct current pulse ultrasonic wave water treatment system |
-
2014
- 2014-03-27 CN CN201410117220.2A patent/CN103848491A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198408A (en) * | 1997-05-06 | 1998-11-11 | 核心株式会社 | Rapid purifying method using ozonized water of high concentration |
| CN1699204A (en) * | 2005-06-07 | 2005-11-23 | 南开大学 | Control technology for tubificidae in tap water |
| CN101326126A (en) * | 2005-10-11 | 2008-12-17 | 有限会社K2R | Apparatus for production of water through photocatalytic reaction |
| CN201089732Y (en) * | 2007-08-14 | 2008-07-23 | 李盈庭 | Strong ultrasound wave water treatment system |
| CN201284498Y (en) * | 2008-10-06 | 2009-08-05 | 俞建平 | Air cavity-enclosed roof water tank |
| CN101643268A (en) * | 2009-09-04 | 2010-02-10 | 沈阳师范大学 | Water treatment method for killing red worms with ultrasound-ozone |
| CN101851037A (en) * | 2010-05-28 | 2010-10-06 | 深圳市水务(集团)有限公司 | Method for inactivating invertebrates in water supply system and application thereof |
| CN102167421A (en) * | 2011-03-04 | 2011-08-31 | 广州市碧滔环保科技有限公司 | Frequency conversion direct current pulse ultrasonic wave water treatment system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213717A (en) * | 2021-06-21 | 2021-08-06 | 杭州余杭城西净水有限公司 | Method for killing red nematodes in sewage treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110801811B (en) | Mg/Fe oxide modified biochar nanocomposite and preparation method thereof | |
| Arora et al. | The effect of seasonal temperature on pathogen removal efficacy of vermifilter for wastewater treatment | |
| Zhou et al. | Enhancement on the simultaneous removal of nitrate and organic pollutants from groundwater by a three-dimensional bio-electrochemical reactor | |
| Tang et al. | Enhanced performance of crumb rubber filtration for ballast water treatment | |
| EA201200103A1 (en) | SYSTEM AND METHOD FOR TREATMENT OF WASTE WATER, INCLUDING THE EXPOSURE TO SOLID SUBSTANCES WHEN PRIMARY | |
| CN106865658A (en) | A kind of water quality cleansing agent and preparation method thereof | |
| CN101624240A (en) | Blue algae killing method | |
| CN103936131A (en) | Industrial wastewater treatment agent and preparation method thereof | |
| Islam et al. | A comprehensive review of the current progress of chromium removal methods from aqueous solution | |
| CN103848491A (en) | Killing method of red nematodes in biological aerated filter | |
| CN102173539B (en) | Device and process for processing high-salt non-biodegradable toxic industrial waste water | |
| Öden | Investigation of the success of physical and chemically modified process waste in heavy metal removal from synthetic wastewater | |
| Poblete-Chávez et al. | Treatment of seawater for rotifer culture uses applying adsorption and advanced oxidation processes | |
| CN105776564A (en) | Aquatic product culture water treatment cleanser | |
| CN104445458A (en) | Composite blue algae treating agent and preparation method thereof | |
| CN105668809B (en) | A kind of abalone culture water purification method | |
| CN106542642A (en) | A kind of aquaculture organisms cleanser | |
| CN205756579U (en) | Efficient circulation water cultivating system | |
| CN111533238A (en) | Method for reducing water-soluble organic carbon in water source | |
| Thakare et al. | Purification of Water by using Cow Dung Ash | |
| Wang et al. | Combination of electrolysis and microalgae cultivation for beneficial reuse of fertilizer wastewater from poultry manure anaerobic digestion effluent | |
| Zazouli et al. | Efficiency of fenton process in olive oil mill wastewater treatment | |
| KR20150097918A (en) | Generation of ion-activated water using microorganisms | |
| Xia et al. | Experimental study on combined process of EOW and MBR for treatment of UDMH wastewater | |
| ZHAO et al. | Analysis of the influence of biological toxic substances in the degradation of fumaric acid wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140611 |