CH191246A - Process for cleaning domestic and commercial wastewater. - Google Patents
Process for cleaning domestic and commercial wastewater.Info
- Publication number
- CH191246A CH191246A CH191246DA CH191246A CH 191246 A CH191246 A CH 191246A CH 191246D A CH191246D A CH 191246DA CH 191246 A CH191246 A CH 191246A
- Authority
- CH
- Switzerland
- Prior art keywords
- wastewater
- cleaned
- fibers
- asbestos
- asbestos fibers
- Prior art date
Links
- 239000002351 wastewater Substances 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 8
- 238000004140 cleaning Methods 0.000 title claims description 4
- 239000000835 fiber Substances 0.000 claims description 16
- 239000010425 asbestos Substances 0.000 claims description 14
- 229910052895 riebeckite Inorganic materials 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000003415 peat Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000003068 static effect Effects 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
- C02F3/087—Floating beds with contact bodies having a lower density than water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Description
Verfahren zur Reinigung häuslicher und gewerblicher Abwasser. Verfahren zur Erzielung eines nicht mehr fäulnisfähigen Abwassers städtischer Ablei tungen sind bekannt. Man hat z. B. orga nische Faserstoffe, wie Zellulose, Holzstoff, Torf etc., dann auch anorganische Faser stoffe wie z. B.
Glaswolle etc., als Filter für das zu reinigende Rohwasser vorgeschlagen, damit die im Wasser enthaltenen Kolloide und Fäulnis erregenden Bestandteile von den Fasern zurückgehalten werden. Es wurde auch vorgeschlagen dem Faserstoff Zusatz stoffe beizumengen, z. B. Kieselgur, Quarz sand, Torfmehl etc.
Das Neue besteht nun darin, dass zwecks Reinigung in Abwässern, z. B. solchen von städtischen Abwasserkanälen, lose Fasern, z. B. Asbestfasern, schwebend gehalten wer den. Es können z. B. aufgeflockte Asbest- fasern verwendet werden, die als Schwebe körper dem Abwasser beigegeben werden. Der Asbest kann für sich allein, oder auch gleichzeitig mit .einem Sauerstoffträger, z. B. Luft, zur Einwirkung auf das Abwasser ge bracht werden..
Zahlreiche vom Erfinder durchgeführte Versuche haben gezeigt, dass insbesondere aufgeflockte Asbestfasern Abwasser nicht nur von Schwebestoffen befreien, sondern auch von halbgelösten Stoffen (Kolloiden) die z.
B. in Abwässern aus Färbereien, Mol- kereien, Beäzereien, Gerbereien, Zucker- fabriken und andern industriellen Betrieben enthalten sind. Das gereinigte Rohwasser ist fast klar und geruchlos.
Nach vollständiger Sättigung der Asbest fasern können: letztere auf bekannte Weise gereinigt und dadurch neu verwendungs- fähig gemacht werden. Die ausgewaschenen Schmutzstoffe können als Dünger verwendet werden, entweder für sich allein, oder in Ver bindung mit Torf oder Torfmull.
Zur Erhöhung der Betriebsdauer und zur Erreichung,der vollen Ausnützung -der Auf nahmefähigkeit des Asbestfilters einerseits, zur Vermeidung von Fäulnisentstehung im Asbestfilter anderseits, kann .der letztere in bekannter Weise belüftet werden,
wodurch im Filter eine Lebensgemeinschaft von Mikroorganismen entsteht, also auf kleinstem Raum eine biologische Wirkung ähnlich der jenigen, von Belebtschlammanlagen oder von Tropfkörpern erreicht wird.
Durch jeweiliges Zurücklassen eines Teils dieser die Mikro organismen enthaltenden Faserstoffe im Be hälter beim Neufüllen- werden die Mikro- organismen auch im frischen Faserstoff ent- wickelt und bleiben daher erhalten.
Die Leistungsfähigkeit des verwendeten Asbestes bezüglich Wasserdurchlauf ist nach den Wahrnehmungen des Erfinders dann ausreichend, wenn im Behälter beispielsweise 3 kg aufgeflockter, watteförmiger Asbest fasern mit je 1 m3 Wasser gemischt werden. Die Mischung kann während des Durchlaufes des Abwassers entweder mechanisch oder durch entsprechend starke Luftzufuhr in Be wegung gehalten werden.
Da die Asbest fasern wohl im Wasser schweben, aber etwas schwerer sind als Wasser, so entsteht keine an der Wasseroberfläche schwimmende Fil terschicht, sondern der ganze Filter bildet einen gleichmässig durchsetzten Körper und es wird eine innige Berührung des Abwas sers mit den einzelnen Fasern erreicht, wo durch die fäulniserregenden Stoffe vom Fil- termaterial festgehalten und ausgeschieden werden. In ruhendem oder sehr langsam fliessen dem Abwasser können die Asbestfasern be wegt werden, um die Wirkung zu beschleu nigen.
Process for cleaning domestic and commercial wastewater. Processes for achieving a no longer putrefactive waste water from urban Ablei lines are known. One has z. B. organic fiber such as cellulose, wood pulp, peat, etc., then also inorganic fiber materials such. B.
Glass wool, etc., proposed as a filter for the raw water to be cleaned, so that the colloids and putrefactive components contained in the water are retained by the fibers. It has also been proposed to add additives to the fiber, e.g. B. Kieselguhr, quartz sand, peat meal etc.
The new thing is that for the purpose of cleaning in wastewater, z. B. those from urban sewers, loose fibers, e.g. B. asbestos fibers, held floating who the. It can e.g. B. flocked asbestos fibers can be used, which are added to the wastewater as floating bodies. The asbestos can be used on its own or at the same time with .einem oxygen carrier, e.g. B. air, to act on the wastewater.
Numerous tests carried out by the inventor have shown that, in particular, flocked asbestos fibers not only free wastewater from suspended matter, but also from semi-dissolved substances (colloids) which z.
B. are contained in waste water from dye works, dairies, bezeries, tanneries, sugar factories and other industrial operations. The purified raw water is almost clear and odorless.
After the asbestos fibers are completely saturated: the latter can be cleaned in a known manner and thus made usable again. The washed-out contaminants can be used as fertilizer, either on their own or in conjunction with peat or peat litter.
To increase the operating time and to achieve the full utilization of the asbestos filter's capacity on the one hand, and to avoid rotting in the asbestos filter on the other hand, the latter can be ventilated in a known manner,
which creates a community of microorganisms in the filter, i.e. a biological effect similar to that of activated sludge systems or trickling filters is achieved in the smallest of spaces.
By leaving some of these fibrous materials containing the microorganisms behind in the container when it is refilled, the microorganisms are also developed in the fresh fibrous material and are therefore preserved.
According to the inventor, the performance of the asbestos used in terms of water flow is sufficient if, for example, 3 kg of fluffed, cotton-wool-like asbestos fibers are mixed with 1 m3 of water in the container. The mixture can be kept in motion during the passage of the wastewater either mechanically or by a correspondingly strong supply of air.
Since the asbestos fibers float in the water, but are a little heavier than water, there is no filter layer floating on the surface of the water, but the entire filter forms a uniformly permeated body and the waste water comes into close contact with the individual fibers. where the putrefactive substances are retained by the filter material and excreted. The asbestos fibers can be moved in static or very slowly flowing wastewater to accelerate the effect.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH191246T | 1935-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH191246A true CH191246A (en) | 1937-06-15 |
Family
ID=4437505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH191246D CH191246A (en) | 1935-06-20 | 1935-06-20 | Process for cleaning domestic and commercial wastewater. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH191246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2518524A1 (en) * | 1981-12-21 | 1983-06-24 | Enso Gutzeit Oy | WASTEWATER PURIFICATION PROCEDURE, PARTICULARLY WATER PRODUCED IN THE WOOD PROCESSING INDUSTRY |
-
1935
- 1935-06-20 CH CH191246D patent/CH191246A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2518524A1 (en) * | 1981-12-21 | 1983-06-24 | Enso Gutzeit Oy | WASTEWATER PURIFICATION PROCEDURE, PARTICULARLY WATER PRODUCED IN THE WOOD PROCESSING INDUSTRY |
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