4 edition of Effect of sulphate on leachate treatment found in the catalog.
Effect of sulphate on leachate treatment
|Series||Canadian theses = Thèses canadiennes|
|The Physical Object|
The effort made in this research into the treatment of landfill leachate is a step towards this goal. This work is the study of analysis Leachate Pollution Index (LPI) of 15 parameters and adsorption combined with physico-chemical method to treat landfill leachate. Treatment of landfill leachate by physico chemical methods with lime, air stripping. treatment€efficiency.€In€this€final€thesis€the€literature€survey€and€some€of€laboratory analyses€were€done€from€leachate€as€preparative€activity€to€help€continue€of€the€work€in August€€in€Finland. Key€words €Landfill,€ leachate,€ leachate€ treatment,€ CWs,€ TSS,€ landfill.
Besides the effect of the shifting pH on metal-ions, there is the reduction of sulphate to sulphide during this phase, which increases the precipitation of metals ions. In general, the strength of leachate decreases with time due to biological breakdown of organic compounds and precipitation of soluble elements such as heavy metals. The present series of books has been produced based on the book “Biological wastewater treatment in warm climate regions”, written by the same authors and also published by IWA Publishing. The main idea behind this series is the sub-division of the original book into smaller books, which could be more easily purchased and used.
Particle size analysis of the raw leachate indicated that its 50 th percentile (d 50) was µm. Three types of coagulants were examined in bench scale jar test studies: aluminium sulphate (alum), ferric chloride (FeCl 3) and ferrous sulphate (FeSO 4). The effects of agitation speed, settling time, pH, coagulant dosages and temperature were. from leachate treatment at Swedish plants By Stig Morling Stig Morling is MSc employed at SWECO VIAK AB P.O. Box SE 26 STOCKHOLM, SWEDEN E-mail address: [email protected] by the north African philosopher Ibn Khaldoun in the th .
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The second phase with the leachate treating units shows an improvement of 32–86% (depended on leachate strength) in current output as a result of adding sulphate. When leachate column MFCs were connected fluidically in series, the amount of Na 2 SO 4 made available downstream was decreasing (increase in power was 99%, 40% and 12% for columns in cascade).Cited by: 8.
T he effects of pH on sulphate removal efficiency Effect of sulphate on leachate treatment book more influential comparing Ca/SO 4. molar ratio changing (ZnSO4) for anaerobic stabilized leachate treatment was investigated. The.
The present study was conducted to investigate the effectiveness of the sulphate-reduction pathway in the anaerobic treatment of landfill leachate.
The effects of several COD/SO 4 ratios (keeping COD constant) and loadings on anaerobic filter performance were studied and compared with the results from anaerobic filters which followed the Cited by: The effect of staging in this plug-ﬂow system eliminates.
Aluminium sulphate (alum), ferrous sul- Advanced leachate treatment systems using biological and chemical treatment methods are. Further, the effect of compaction delay and curing period on the sulfate contaminated lime treated soil is also brought out in this paper. Lime contents of (initial consumption of lime (ICL) −1%), (ICL) and % (ICL +1%) were used in this study.
The sulfate contamination was limited toand by: 1. • Describe leachate treatment in a specific site in Sweden (SYSAV AB, Malmö) • Propose a treatment method for SYSAV AB. Aims The aim of the study is to examine the various methods of leachate treatment, compare the methods, observe treatment processes and efficiency of existing full scale leachate plants, look at how SYSAV AB, Malmö.
CHARACTERIZATION OF LEACHATE FROM MUNCIPAL LANDFILL AND ITS EFFECT ON SURROUNDING WATER BODIES,acD epartm nt of C iv lEng neeri g, Indan s titu of Sc ce Banga r, a. bEn ergy & W tlands R sa ch G oup, C nt for E ol g ial S ce, Ind an Institute of Science, Bangalore, India.
ABSTRACT. Zhao Youcai, in Pollution Control Technology for Leachate from Municipal Solid Waste, Regulating Pool. Leachate treatment effect of aged refuse bioreactor is greatly affected by climate conditions. When the temperature is too low (less than 15°C), in order to ensure water quality of effluent, influent quantity should be reduced.
The collected leachate is pumped out of the collection trench and directed to the leachate treatment lagoons. The leachate is treated in the lagoons by evaporation using mechanical aerators and heat. The purpose of the mechanical aerator is to enhance the evaporation process and decomposition of the organic content of the leachate [5,10].
In addition, concerns were raised regarding the effect of simple dilution rather than treatment of the leachate. Leachate Recirculation Leachate can be recycled by recirculating it through the landfill to improve biodegradation and waste stabilization.
On-site leachate treatment is an alternative to the increasing costs associated with hauling leachate to a local wastewater treatment plant. These treatment facilities are designed to fulfill the specific needs of individual landfill sites and allow discharge to a sanitary sewer or water body without any hauling or disposal costs.
The performance of certain leachate treatment units remains weak and requires improvement combining biological and physical-chemical processes [21,22,24,25]. Among the many techniques giving the best results in the treatment of leachate we would mention membranes, especially those with reverse osmosis [12,13,24].
Effect of Leachate on Surrounding Surface Water: Case Study in Rajbandh Sanitary Landfill Site in Khulna City, Bangladesh. By Md. Rafiqul Islam, Km Alim Al Razi, Md. Rokon Hasan, & Salma Alam. Khulna University of Engineering & Technology, Bangladesh. Abstract - Leachate is the aqueous effluent generated as a consequence of rainwater percolation.
Leachate treatment is essential as it could threaten the surrounding ecosystem when discharge as it is and when it mixes with groundwater. This paper is a review of landfill leachate treatment methods. Advantages and drawbacks of various treatments are discussed.
Various leachate treatment technologies like coagulation. cause’s harmful effects on human life which lasts for decays. In land filling operation, management and treatment of leachate is an important standard operation. Leachate is classified based on age of landfill as young and old leachate.
For young leachate the concentration of COD will be >10, Leachate treatment The effect of different dose concentrations of FeCl3 on the performance of a mesophilic anaerobic digester treating the leachate was tested. The result indicated that sulphate reduction was the predominant reaction: as a consequence dissolved sulphide concentration reached mg/l and methanogenic processes were entirely.
The research looks at the feasibility of treating an alkaline sulphate-rich leachate arising from the co-disposal of municipal solid waste with cement kiln dust by means of an anaerobic filter (AF).
This type of leachate with a high sulphate concentration is commonly prohibited for discharge to sewer and requires an on-site treatment solution.
Usually, the leachate treatment involves a combination of various biological and chemical methods. Conventional landfill leachate treatment can be classified into three major groups: Recycling and combined treatment with domestic sewage.
In the past, it was common to treat landfill leachate mixed with municipal wastewater [2, 38]. This option. Membrane Technique for Leachate Treatment- A Literature Review The physio-chemical treatment processes have an average effect on the treatment of heavy metals and organic waste.
The coagulation flocculation for sulphate salts and ions, organic and inorganic compounds, but are costly. The. Leachate is not always flowing. The system runs intermittently as leachate collects in the wet well beneath the open cell.
When operating, the leachate flowrate is estimated to be about 32 gallons/minute. Typically, the leachate is pumped two days per week for six to eight hours each day.
The leachate collection area is the low point at the site. In the recent years, advanced oxidation process (AOP) has shown promising hopes for the treatment of stabilized leachate.
Among the various AOPs the sulfate radical based advanced oxidation process (SR-AOP) are of recent interest.
The present study analyzes the effectiveness of SR-AOP to treat the stabilized leachate. The effect of certain.Leachate is characterized by elevated organic and inorganic contamination. Parameters measured which show significant contamination in leachate samples are pH, Sulphate, Nitrate, Nitrites, Heavy metals (Pb, Zn, Ni, Cr, CO, Fe, Mn, Cu).
Leachates of the methanogenic phase, are usually on the alkaline side of neutral when the pH value is recorded. Landfill leachates from municipal landfills are usually heavily contaminated and thus require treatments before direct discharge into natural waters.
Selecting the appropriate technology for leachate treatment is still a major challenge for operations in municipal landfills. Biodegradation is effective for treating young leachates, whereas old leachates require processes such as chemical.