CA1053918A - Pre-coated refuse-coal filter for landfill refuse treatment - Google Patents

Pre-coated refuse-coal filter for landfill refuse treatment

Info

Publication number
CA1053918A
CA1053918A CA311,053A CA311053A CA1053918A CA 1053918 A CA1053918 A CA 1053918A CA 311053 A CA311053 A CA 311053A CA 1053918 A CA1053918 A CA 1053918A
Authority
CA
Canada
Prior art keywords
refuse
coal
water
sorptive
landfill
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
Application number
CA311,053A
Other languages
French (fr)
Inventor
Cyril T. Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA311,053A priority Critical patent/CA1053918A/en
Application granted granted Critical
Publication of CA1053918A publication Critical patent/CA1053918A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/18Making embankments, e.g. dikes, dams
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00Methods specially adapted for refuse
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B1/00Dumping solid waste
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/04Aerobic processes using trickle filters
    • C02F3/046Soil filtration
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00Soil-conditioning materials or soil-stabilising materials
    • C09K17/02Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

AN ABSTRACT OF THE DISCLOSURE

The present invention concerns a method of preparing landfill refuse and pulverized treated sorptive-coal materials to serve as a coal-refuse pre-coat filter for use in inhibiting the production of refuse pollutants at the water-refuse interface, of the fill refuse of landfill refuse dumps, and the provision of tertiary treatment to the leachate waters therein.

Description

This invention relates in general to landfi.ll oper~
ations and in Particular to a process for the pre- treat-ment of landfill refuse to make of it an artificial carbon pre-coat filter for the treatment of landfill leachate~.

The invention relates in par~ to Canadlan Patent App-lication No" 2~8,327 filed ~arch 19, 1976 :~or "COA~rB1~3E
L~NDFILL, LEI~CHATE TRE~TMENT"

Leachate from solid waste fills is rapidly gaining rec~
ognition as an ever increasing threat ~o groundwater purity;
groundwater i8 the baQic water source for many millions of Canadians. Leachate9 mainly consi3tlng o~ rain and the contamination it soaks up as it percolates through the refuse fill, contains about as much BOD tbiological oxygen demand) as the nation's entire discharge of untreated raw 9 ewage.

Since leachate treatment i9 in itfi infancy, there is a dearth o~ long term experience, wi~h qUantitieB generated, analyse~, effect of residence time, or optimum treatment methods- .

Leach~te-landf.ill water sources are a mixture of waters from many sources some of w~lich vary in contribution rate with the time of ~he year, date or activity at the site. The surface water~ originate roms : (a) surrounding lands ad~acent ~o the site~
(b) surface~flow of landfill sur~ace due to precipit : : ation, : ~ tc) water per~olation~ that pa~s through the re~us~
: from above due to dredging or tank truck di chaxgss, ~d) water liberation~ to the upper sur~ace o~ a possible p~at ba~e on which the landfill is buil~, due to the~:

,", ~ ~ '' ~' '."

~()S39~ :
consolldation of th~ peat and may thu~ ha~re passed upwards through the lower portion of refuse, ~e~ water infiltration through a river dyke and onto the s ite durin~
( i ) h igh t id e, (ii) hiS~h stages in the river,, (f) water liherations during compres~ion of the refuse or during it~ decompo~ition, (g) sprinkling of fill to prevent or e~ctinguish ~ires~

Thus~ flows and quality of surface waters have thQ
potential to vary hourly9 daily, weekly and seasonally in many ways around the site.

To determine water quality data the following three types of water quality investigations are conduc~ad on the surface water~ ~ :
~(a) chemical analy3is of ~aters, (b) bacteriological counts:o~ ditch waters and sediment~, (c) bioa~0ay of waters ~lowing directly from the ~ite , to a water carriage 8yst~

It may be ~een, there~ore, tha~ the most ~ignificant factors cau~ing the extreme deyradation of wa~er quality i~suing ~rom landfill sites are~
(a~3 percolation af waters through the re~uss, ) heterogeneity o~ the ref~e and resulting leachate~
re-rout~ng and/or stagna~ion of both waters and ediment~ ~due~ to~ ditch cutting or filling~

: ~ . .
(d) the breakdown~of organic matter in the refu~ with the production~of ammonia. ~ ~ ;

: ~ :
:' ~, : ~ ~ ; . ' ' .
.

~L053~
~ s was aforementioned, leachate from solid waste fills is an ~ver increasing threat to ~roundwater purity and the treatments provided still suffers from the disadvantaqe that in spite of the best technical ~dviee presently avail-able to landfill operators, the degradati.on of groundwater purity by leachates continues unabated.

It is known that the production of landfill leachates occurs as a r~sult of the inter-ac~ion of percolating waters with the refuse in the landfill, at the water refuse inter-face thereof. It will b~ evident~therefore7 that this water-refu3e inter~ace i6 the point of origin of leachate po;ll-utants.

I have found that the aforementioned disadvantacJes pres~
ently associated with the treatment of landfill refuse .
and the leachates issuing therefrom, may be overcome in a manner which iB simple,practical and economical~ by the method of the present inv~ntion.
.
It is a prime objective of the 1nvention~ therefore, o~ ~reating the heterogeneous re~use~mixture,in place within ~he re~use-landfill,by the provision therein of an arti~icial pre-coat fllter formed ~rom the fill re~use and an improved ~in~l~ pulverized sorptive-coal treatment medium~ whereby conditions avourable for inhibiting the davelopment o~ leachate pollutants and providing a high degree of t~rtiary treatment of such pollutant~ at their potential source o~ origin, ~t the aforesaid water-rafuse interface is provided~

Other ob~ectives ~rili becom~ apparent to those skilled in the art f rom the descript ion herein and f rom the app-endent claims~ an~ such objects are intended to fallwithin the:scope of my inventionO
- 3 ::
, ~ -:
:

, ~ , .

~6~53~8 For the purpose of this invention the term filter pre~coat shall mean the coating, lodgment, gathering, adherence, catchment or envelopmQnt by or oE the refuse in the fill, by the sorptive Powdered coal in ei~her dust or as a Powdered coal-in-water ~lurry, w~len applied as a filter media coating to the refuse fill upon or within the exterior or interior surI'ace areas of the refuse and used therewith or therein to serve the Eunction of a pre-coat filter in the treatment~ fixationJ containment or removal of refuse pollutants by various filtration and sorptive processe~ prevent the degradation of de-gradable substanceQ or materials in the refuse~ or treat, correct, remove or alter the status of the refuse in a beneficial manner in whole or in part. in any way what-soever.

In vacuum ~ilters it is common to use the filter with ~ .
canvas f iltering sheets through which wa~ex i5 sucked while the solid is left on the outer side. Their purpose is to save the liquid (such as cyanide ~olution) for re-use or to extract the solid from the suspension (such as ~ine coal3, or both. rhe present invention dif~ers ~rom aforementioned vacuum filter in that vacuum is not used ;~
in the treatment proces3 and the refuse is artificially coated with sorptive Powdered-coal filter medium wlthin a loo~ely packed re~use fill.

In practice, the refuse is intimately mixed with sorp- ~:
tive Powdered coal in amounts of from between ~ lb to 50 lbs of sorptive coal to one ton of refuse fill prior to bein~ deposited within the landfil}. This is done prefer- :
~ably in a rotating mixer and the sorptive powde~ad coal ' ' .

5391~

intlmately mixed w.ith the refuse in the form of a coal- .
in-water slurry therein~ The Powdered sorptlve-coal and water slurry mixture is mixed with the heterogeneous refuse for a sufficient period of time to effect tha complete and total coverage of the refuse by the sorptive ` .
Pwdered coal. The treated refuse fill is then deposited within the landfill without drying where advantage i8 taken of the wetted condition o~ the treated refuse to achieve greater compaction and densification in the land-fill after rolling and distribution procedures are ca.r:ried out. At this stage the land~ill refuse has been deposi~ed within the landfill as a pre-coated refuse fil~er envel-oped wi~hin a coating o~ 60rptive carbon, and it will be evident to those skilled in the art that alL the sorptive POwdered coal ha5 been added to the refuse at the water-xe~use interface or the point o~ origin of leachate pol-lutants therefrom. An immediate adv~ntage o~ the addition of the sorptive ~oal to the refuse will be noticed by the complete absence of odours normally associated with the depo3iting of garb~ age in varying ~tages of d~gradation~
this is be~use the sorptive coal within the coal-refuse mixture serves to provide odour control therein. A further, long term advan~age of the addi~ion o~ the sorp~ive Powd- :
ered-coal to the refuse in the refuse fill i~ that the ~orptive coal serve~ ~o inhibit the decay of organic matter in the reuse thereby redu~ing the degree o~ ammDnia prod-:~ uetlon in the ~ normally carried away in the fill leacha~e, and also reducing the long-term production of harmful methane gases generated within the ~ill as it age~ .
30 ~ high degree of tertiary treatment ~s provided wlthin the ~ :
re~u6e fill by the ~oal~refuse pre-coat filter layer~ to ~perFolating water~; therein and leachates issuirlg therefrom. ~;

~............ . . . . .

~;3~
In the preparation of sorptive powd~red-coal additives used In the process o~ ~he invention it :is e~sential that the raw coal before treatment have a degree of sorptive affin.ity for variety of pollutants liXely to be found in a hete.rogeneous refuse fill mixture and t:ha resultant leachate therefrom. I have found that the most suitable coal ~or my purpose are low ~rade coals having a relatively high content of water soluble substances and volatile matter and gases which may be easily removed therefrom, and also such removable matt~r being relatively evenly distributed throughout the raw coal .

Suitable sorptive coal3 are found usually among the group of ~oals consisting of Bittuminou~ Coal, Subbitum-inous Coal9 Lignite Caal, Brown Coal or wastes thereo~
Studies of thln section~ of the coal samples are made and the presence of and distribu~ion pattern of removable matter determined by either ~letting or heating the thin coal ~amples or both proceduxes alternatively- :

Selected coals are then pulverized and screened to provide th~refrom coal sizings in which the maximum ~aal particle si~e i9 that passing through a standard screen with a mesh 3ize o~ 200.

The coal particles are then subjected to a proce~s of artificial weathering in which a series of wettlng and dry7 ing cycles i9 applied to the coal particles, which reæults in the production of an ~xpand~d coal particle havin~ a more open and porous structure-.

535~

The expanded coal particles are then washed and leachedwith water and heat dried, wherein the amount of heat applied to the coal particles is less than that required to change ~he structure of the particles but i5 tha~ amount sufficient to release and remove any volaltile gases or substance~ contained therein. By this method of processing the coal particles, I have found that from 14.5 to 30 per ent water soluble and heat removable substances and gases may be removed ~rom the coal particle st~ucture to provide a coal Particle therefrom having a high porousity with improved gas adsorptive properties and storage capacity.

As an additional step, prior to mixing the C031 part-icles with the refuse o~ a fillJ the coal particles are activated washing the particles with onb'Or more solutions cho~en from hot or cold water, distilled water, steam, hydrochloric acid, and sodium hydroxide so as to leach reactlve coal chemical~ and thereb~ increa~e the gas ad-sorptivity, ion adsorptivity and decay inhibiting prop-erties of the porous surfaces o~ the coal particl~s.

:
Th~ following examples give an indication of the ability of the improved sorptive treated-coal particles to elim-inate the decay-cau~ing bacteria to prevent the further ;:
produ~tion of ga~es fe~ulting from the decay of organic matterOin the refu~e fill~

EX~MPLE "A" ~
Treatment of septic tank (anaerobic) sewage with pulver- ~:

iz ed c~o ~1 . ( exc erpt f rom ~B O C . Po 1 lut ion Cont ro 1 Branch repo rt ) :.
e percentaçtes of reduction in the Parameters measured .
; ~indicated that a high deqree of reduction has been ach~eved 30 including total and faecal coliform bactPria levelsV~.

' . ... . . - : .

~353~

"The deqree of treatment provided by this ~system is better than level "A" of "The minimum Requirements for Disposal of ~lunicipal and Domestic wastewaters to surface waters".
%

P~R~METER INFLUENT EFFLUENT REDUCTION
June 17, 1974 T. Coliform = 240,000 - 2,400 ~. Coliform = 240JOOO = 2,400 July 3, 1974 10 T- Coliform 9.2xlO6 2 14 99 F. Coliform 4-9x1057. x103 99 T 22, 1974 T- Coli~orm 1-6x106S4, 000 97 F- Coli~orm 79, 0007, 000 91 ~ ' ~.
EXAMPLE "B "
The result3 of tests on differing types of coal mat erlals indicate the difference between a coal material containing a high percentage of r~movable water ~olubl~
substances thersin and an ordinary higher grade coal 20 material with a lower percentage o~ removable ~ater soluble substances contained ~'herein~ The test results shown ~or the Hat Creek coal materials wer~ increased a ~urther 11 per cent by the method of the present inven ion~ -.
to~a maximum of 30 per c~nt removal- ~

.

' :: :

. .. .

~ ;39~ :

R~SULTS OF SOXH:LET EXTR~CTIûN OF HAT CREEK l~ND VICARY

CREEK COAI~3 ~
~ .

H-~T CRE~K CO~I.
Extraction Me~h Initial Final ~W
Tlme Size Wt . c~m Wt ~ qm Extracted 16Hours-60/115 35 0 27 . 5 21~ 4
2~ " " 75.0 57.5~3.3 24 " " 7S.0 59.321~0 ` `

Vicary Cr~ek Coal 10 16Hours-60/115- 35-0 33-7 3-7 24 " " 75-0 74-0 1~3 24 " " 75-0 74~2 1-1 :
, ' ~X.~MP~E"C" ,` -~: ' -, The following tests were made on a wide range of inorganiC and organic substances tna;~e.-up~-t~ represent selected leachate pollutantE; . The procedure follo~ed : :`
in te~ting the adsorption proPertieS of the coal-carbon involves (13 preparation of standard solution~ (2) sie~ing o~ the coal-carbon to a 1/4" to 1/16" part~cle size~ (3) 'chree dif~erent washin~f procedures involving ~a) a dist-d water Wa8hD ~b) a ~Cl acid ~ash~ (c3 a NaOH ~a~3e -waxh. ~d~ a ba~e then acid w~sh; ~4) coal-carb~n dried at 160 ~C:: (5) treat 200 ~grams o~ coal-carbon With 100 grams 0~ 801ution;~ (6 ~ measUré chang~s - Th~ r~?sults are a8 ~ol10W6 .

:

:
: ~'
3~0~i3~8 EXI~MPLE "C "
Inorganic Ion ~dsorpt ion Final Concentration(PPM~
( PPM ) Initial Con- N~utral ~cid Base Base thenContact : :
centrationWash Wash Wash AcidTimes (hrs ~ : :
Zinc 30 0. 6 1 O -%inc 30 - 3 3 ~
Barium300 2 2 1~ 0 10 E~arium300 5 2 Copper 10 .OR 4~5 6,5 1~ 0 Iron 10 51 3-7 1~ 7 1-5 Manganese 1146030 81~0 6-3 43~0 1-0 Chromate105 . 00 2 ~ 0 Chromate10 . 02S
Sulfate200 250-00 120.0 150.0 1^ ~ .
Phosphate 50 37-5033~8'~! 13-1 Phosphate 50 6-0 11-1 3.0 Chloride3032 SO
20 Nit~ate200249.00 115.0 go~o 5-0 .
Nltrite109 105-00 1-5 Cyanide70 10-00 1-0 Cyanide70 8.00 2-0 Cyanide70 1-10 20-0 Ammonium30 5 1. 0 ~Anunonium 30 2 o 8 d~o O

rhe a~ov~3:r~sults, clearly show a strong adsorption tend-ency toward mo~t cat ion~ and the anions, CN J CrO~ and to some ~ent P~. Ihe ac.id and ba~e ~ tr~at:ed carbons a~pear 30 to~ have er~anced abili~y to adsorb nitrates~ phosphate,s, ~. :
,.

. .
~ ' .~

.. ~ .. ~ . .. .. ... , . . ~ . .

53~

and sulfates~ It should be poin~ed out longer con~ac-t times will probably laad to increased adsorption since equilibrium appears to require several hours (e.g. ? s~e chromate results~
in some cases7 ~hese longer contac~ times are a~ailable in the refuse ~reatment syst~m of the present invention.

Organic ~dsorption ~ he following studies have been carried out using phenol and nitrobenzene. Ten grams of neutral wahed coal was treated with 10 grams of pure nitrobenzane and 10 grams of 90% ~ :
aqueous ~olution of phenol for one hour. By weighing the coal be~ore and after exposure to the organic the foll~
owing re3ults were obtained, Phenol g of organic adsorbed/g of coal 0~19 Nitrobenzene " " " 0.l6 These results compare favurably wi~h th~ results of a study in whi~h phenol and nitrobenzene were adsorbed on a large surface area commercial activated carbon~ This act-l-vated carbon, which posse~secl a su:rface area of 120ûm ~/g, ~ adsorbed OOO9~ g~ams o~ phenol/gram of carbon and 0.~
gram~ o~ n~trobenzene/gram of ~arbon~ These re~ults show that the sorptiv~coal ~dsorptivity when processe~ accord-ing to the method of the pre~nt invention of these two organics i~ equal to that of a high grade synthetic ~ctitrated carbon.

:
Nearly ninety percent o~ the solid waste generatad in Canada is depo~ited in landfills and a significant number oL the~e landfills are located in regions in which the -~ -annual rainfall is su~f icient to produce leachate. ~hu~
a simple; prac~tic~al and effective refu~e treatment sy~tem , ~ , ~os;~9~ :
directed toward the ~ontrol and trea~men~ of leacha~e i5 highly desirable ~rom an environmental and an economlc standpoint. C~early9 a low cost, readily available source of naturally activated coal-carbon has a wide spectrum and large capa~ity ~or adsorption of leachate contamin-ants would provide a significant contribution in solving a major environmental problem of national concern.

It will occur to those skilled in the ar~ that it would not be possible to list all the ways in which the pre-coat r~fuse-coal fil~er of the inven~ion may be used to advantage in the treatmant of the rPfuse in the heterogen-eou3 mixture thereof in landfill operations~ this i5 best done in practice, It should be appreciated that the fore- .
going description has been lar~ely couched in terms o~ -axample~ and preferred practice thereof. Numersus changes and modifications thereof will readily occur to those sXilled in the art, and such variations are intend~d to fall within the scope of the hereto appended claims- :

This invention also relates in part to Canadian P~tent Application "~ntitl~d "USING IMPROVED SORPTIVE COAL MAT-ERI~LS TO REMOVE METHANE GAS FROM REFUSE FILLS ~ND PRE-VENT~NG THE FURTHER PRODUCTION THEREOF". The present inven-tion differs from the aforementioned inventlon in that lt decribes the preparation of a pre-coat filter from sorptive coal and refu~e, no application number receiv~d ~ :
as yet. :

: - 12 - :

.~ ~

,, . :

Claims (6)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A method of using landfill refuse coated with an imp-roved sorptive coal-fines medium to provide a pre-coat pollutant-retarding and treatment filter media, at the point of origin of refuse pollutants the inter-face of the refuse with waters percolating therethrough, which includes the steps of:
(a) determining the nature of the heterogeneous refuse to be placed in the landfill, (b) providing an improved sorptive-coal-fines filter-pre-coating medium having affinity for a wide spectrum of refuse pollutants as determined from step (a), (c) pulverizing, screening and improving the sorptive properties of the coal and producing therefrom improved sorptive coal particles in which the maximum particle size is that passing through a standard screen with a 200 mesh size, (d) forming a coal-in-water slurry from the finely sized sorptive coal particles with water, (e) adding the sorptive coal-in-water slurry to the landfill refuse and intimately mixing and coating the refuse with the said coal-in-water slurry, thereafter (f) depositing the coal-refuse mixture as a layered and compacted pre-coat pollutant-retarding and treatment-filter within the refuse landfill.
2. A method as claimed in Claim 1 including the step of expanding then making the coal particles more porous, prior to activating the said coal particles, by sub-jecting the finely pulverized coal to a series of wet-ting and drying cycles with water, then washing and leaching the said coal particles to remove water sol-uble removable substances and entrapped gases there-from.
3. A method as claimed in Claims 1 or 2 including the step of washing the expanded and more porous coal particles, prior to coating the refuse therewith, with treatments and one or more solutions chosen from heat application under controlled conditions, steam, hot or cold water, distilled water, hydrochloroic acid, and sodium hydroxide.
4. A method as claimed in Claims 1 or 2 including the step of deodourizing the refuse, prior to depositing the refuse in the refuse landfill, by intimately mixing and coating the refuse with a coal-in-water slurry consisting of an improved finely pulverized and screened sorptive coal material and water mixed with agitation in a tumbling mixing device.
5. A method as claimed in Claims 3 or 4 including the step of preparing a pre-coat pollutant-retarding and treatment filter at the point of origin of refuse pollutants, prior to passage of the percolating waters therethrough, with a pre-coat filter mixture consisting of landfill refuse coated with an improved finely pulver-ized sorptive coal-in-water slurry mixture.
6. A method as claimed in Claims 4 or 5 including the step of providing tertiary treatment to potential leachate effluents, during the passage of the percolating waters through the landfill refuse, by contacting and treating such refuse percolating waters at the point of leachate origin with the refuse-water interface with a pre-coat filter comprising fill refuse coated with an improved pulverized sorptive-coal and-water mixture in slurry form.
CA311,053A 1978-09-11 1978-09-11 Pre-coated refuse-coal filter for landfill refuse treatment Expired CA1053918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA311,053A CA1053918A (en) 1978-09-11 1978-09-11 Pre-coated refuse-coal filter for landfill refuse treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA311,053A CA1053918A (en) 1978-09-11 1978-09-11 Pre-coated refuse-coal filter for landfill refuse treatment

Publications (1)

Publication Number Publication Date
CA1053918A true CA1053918A (en) 1979-05-08

Family

ID=4112335

Family Applications (1)

Application Number Title Priority Date Filing Date
CA311,053A Expired CA1053918A (en) 1978-09-11 1978-09-11 Pre-coated refuse-coal filter for landfill refuse treatment

Country Status (1)

Country Link
CA (1) CA1053918A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0297356A1 (en) * 1987-07-03 1989-01-04 Siemens Aktiengesellschaft Waste container, particularly for final deposit of radioactive substances
US4990031A (en) * 1988-06-09 1991-02-05 Blowes David W Treatment of mine tailings
US5190406A (en) * 1991-12-13 1993-03-02 Municipal Services Corp. Cationic treatment landfill
US5198128A (en) * 1987-07-03 1993-03-30 Siemens Aktiengesellschaft Waste disposal site, in particular for the ultimate disposal of radioactive substances
CN107450469A (en) * 2017-09-29 2017-12-08 四川德胜集团钒钛有限公司 A kind of system and its adjusting method for being used to adjust raw coal moisture
CN112408705A (en) * 2020-11-12 2021-02-26 江西挺进环保科技有限公司 Domestic sewage treatment system with tidal flow percolation system and treatment process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0297356A1 (en) * 1987-07-03 1989-01-04 Siemens Aktiengesellschaft Waste container, particularly for final deposit of radioactive substances
US5198128A (en) * 1987-07-03 1993-03-30 Siemens Aktiengesellschaft Waste disposal site, in particular for the ultimate disposal of radioactive substances
US4990031A (en) * 1988-06-09 1991-02-05 Blowes David W Treatment of mine tailings
US5190406A (en) * 1991-12-13 1993-03-02 Municipal Services Corp. Cationic treatment landfill
CN107450469A (en) * 2017-09-29 2017-12-08 四川德胜集团钒钛有限公司 A kind of system and its adjusting method for being used to adjust raw coal moisture
CN107450469B (en) * 2017-09-29 2023-06-02 四川德胜集团钒钛有限公司 System for adjusting moisture of raw coal and adjusting method thereof
CN112408705A (en) * 2020-11-12 2021-02-26 江西挺进环保科技有限公司 Domestic sewage treatment system with tidal flow percolation system and treatment process

Similar Documents

Publication Publication Date Title
Ho et al. Kinetic studies of competitive heavy metal adsorption by sphagnum moss peat
CA2245657C (en) Pelletized composition for treatment of storm water runoff
James et al. Phosphorus sorption by peat and sand amended with iron oxides or steel wool
CN102574203B (en) Can be thoroughly composite porous
Thornton et al. Leachate treatment by coagulation and precipitation
Heikkinen et al. Phosphate removal by peat from peat mining drainage water during overland flow wetland treatment
CA1053918A (en) Pre-coated refuse-coal filter for landfill refuse treatment
Harris et al. Bacterial mitigation of pollutants in acid drainage using decomposable plant material and sludge
Folsom Jr et al. Zinc and cadmium uptake by the freshwater marsh plant Cyperus esculentus grown in contaminated sediments under reduced (flooded) and oxidized (upland) disposal conditions
Lennox Sediment-water exchange in Lough Ennell with particular reference to phosphorus
Hsieh et al. Criteria development for water treatment plant residual monofills
Gordon et al. Treatment of manganese from mining seep using packed columns
Garnett et al. The Effect of Nitrilotriacetic Acid on the Solubilities of Metals in Soil‐Sludge Mixtures
CA1054728A (en) Coal-base landfill, leachate treatment
Wong et al. Environmental implication of soils amended with anaerobically digested sewage sludge in Hong Kong
Liu The effect of sewage sludge land disposal on the microbiological quality of groundwater
Rangsivek Removal of dissolved metals from storm water runoff by zero-valent iron
Oing Suitability of processed dredged material from the Hamburg harbor for dike construction
Yaron et al. The effect of solid organic components of sewage on some properties of the unsaturated zones
Brenton Evaluation of soil water quality following the application of biosolids on a semiarid rangeland in Texas
CA1079650A (en) Coal-base landfill, leachate treatment
Lee Preliminary study on the application of steel industry slag for phosphorus removal in constructed wetland
Corbett Treatment of a low strength landfill leachate with peat
CA1079876A (en) Coal-base landfill leachate treatment
Harrison et al. Wastewater Renovation with Mine-Derived Fill Materials