leachate Articles
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Solving Toxicity Issue with Leachate - Case Study
Toxicity of lanfills leachate is a big environmental concern and issue in Canada. The city of Riviere-du-Loup Has taken steps toward solving this environmental issue. Probiosphere is actually dealing with the issues and the results, so far are on target. We have clearly made the choice of selecting natural biodegradable ingredients to conduct this experiment. The use of natural product that ...
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Compatibility of Compacted Soils with Municipal Waste Combustion Ash Leachates
Hydraulic conductivity values for three compacted soils were used as indices of compatibility of the soils with two municipal waste combustion (MWC) ash leachates. Specimens of the three soils were compacted to 90% of proctor compaction (ASTM D 693) in double-ring permeameters and permeated first with water (0.005 N CaSO4) and then with MWC ash leachate. The hydraulic conductivity values of the ...
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Influence of magnetic treatment on the improvement of landfill leachate treatment
Magnetic treatment is an alternative simple approach by which landfill leachate treatment could be improved. The purpose of landfill leachate treatment is to remove the Suspended Solids, Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD). Based on experiment by using circulation flowing system with a magnetic strength of 0.55 T, it was shown that the leachate quality could be ...
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Photodegradation of organic matter in fresh garbage leachate using immobilized nano-sized TiO2 as catalysts
Two immobilized nano-sized TiO2 catalysts, TiO2/activated carbon (TiO2/AC) and TiO2/silica gel (SG) (TiO2/SG), were prepared by the sol–gel method, and their use in the photocatalytic degradation of organic matter in fresh garbage leachate under UV irradiation was investigated. The influences of the catalyst dosage, the initial solution pH, H2O2 addition and the reuse of the catalysts ...
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Linhai Landfill Leachate Project
Linhai Songshan Landfill Leachate Treatment Project is Jiarong's typical application case of landfill leachate treatment which adopted Jiarong Two-stage DTRO system, its treatment capacity is 220m³/d, it has been stable running more than 3 years. ...
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Electrochemical treatment of semi-aerobic landfill leachate using Response Surface Methodology (RSM)
This research investigated the effectiveness of electrochemical treatment in treating semi-aerobic landfill leachate. The electrolytic reactor assembly included a pair of aluminium electrodes, a power supply and NaCl as electrolyte. The interactive effects of initial COD, current density and reaction time on treated leachate quality were studied. Regression equations were developed using ...
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Leach Tests on Lime-Treated Clays
This paper describes the design, use, and results of a multiple leach-cell operation to test the changes in permeability and calcium removal of a lime-treated expansive clay under continuous water leaching. Seventy laboratory-prepared lime-treated clay specimens were subjected to continuous accelerated leaching for periods of 45 and 90 days with varying lime contents and compactive moisture ...
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Field leaching of alkaline copper quaternary-treated red pine lumber over 3 years: long-term dynamics
Alkaline copper quaternary (ACQ), a wood preservative, consists of copper oxide and quaternary ammonium compounds. Three red pine piles were monitored over 3 years to evaluate the dynamics of contaminant leaching from ACQ-treated and untreated lumber. There were small temporal changes in the volumetric leachate/rain ratio with the ACQ-treated lumber, while the volumetric ratio decreased across ...
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Municipal landfill leachate treatment by SBBGR technology
The paper reports the results of a laboratory-scale investigation aimed at evaluating the performance of a periodic biofilter with granular biomass (SBBGR) for treating leachate coming from a mature municipal landfill. The results show that the SBBGR was able to remove roughly 80% of COD in leachate. The remaining 20% of COD were, therefore, presumably owing to the presence in the leachate of ...
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Wuhan Tianyuan leachate Project
Capacity:100tons/daySS<=800mg/L, pH:6-9, COD<=10000mg/L, BOD<=5000mg/L,NH3-N<=2500mg/L, TN<=3000mg/L,Total hardness(as CaCO3)<=1200mg/L, Total akalinity(as CaCO3)<=10000mg/L,SiO2<=50mg/LConductivity<=15000us/cm, recovery rate>75%15000us/cm<conductivity<20000us/cm, recovery rate70-75%20000us/cm<conductivity<25000us/cm, recovery rate ...
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Ammonia Stripper Projects SITA - Case Study
The project objective is to reduce ammonia in wastewater and leachate using patented technology developed by ...
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Desorption kinetics and leaching study of arsenic from arsenite/arsenate-loaded Natural Laterite
Desorption kinetics of arsenite- and arsenate-loaded Natural Laterite (NL) is performed under varying NaOH concentration (0.05-0.3 mol/L) and pH (4.0-11.0) of the desorption medium. The kinetic desorption data are well fitted to pseudo-second order kinetic model. The leaching of NL under aqueous medium is performed in the pH range of 2-12. Separately arsenite- and arsenate-loaded NL is leached ...
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Treatment of landfill leachate by effective microorganisms
Five dominant strains, capable of treating leachate effectively, were isolated. The results showed that the removal efficiency of COD by using the mixed strains was higher than the pure strain, reaching 46.8%. The optimal inoculum concentration and the treatment time were 10.0% and 120 h respectively. The removal rate of COD reached the maximum at the temperature of 35°C and pH of 7.0. The ...
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Leachability of Protein and Metals Incorporated into Aquatic Invertebrates: Are Species and Metals-Exposure History Important?
Abstract To partially simulate conditions in fish intestinal tracts, we leached six groups of metals-contaminated invertebrates at pH 2 and pH 7, and analyzed the concentrations of four metals (Cd, Cu, Pb, and Zn) and total protein in the leachates. Four of the groups of invertebrates were benthic macroinvertebrates collected from metals-contaminated rivers (the Clark Fork River in Montana and ...
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Assessment of genotoxicity of landfill leachate by comet assay using golden pothos (Epipremnum aureum)
Landfill leachate is a complex mixture of various inorganic and organic compounds. The possibility of using comet assay in relation to pollutant analysis for characterising genotoxicity of landfill leachate was studied. Golden pothos (Epipremnum aureum) was used as the biomonitor with comet assay. Polluted water of fresh and old leachates in different gradients was employed in the experiments. ...
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Leachate Storage Tanks
Landfill leachate is a high concentration of the organic or inorganic liquid, which contains toxic substances and very corrosive, and one can never be too careful when storing such aggressive liquid. Comparing with other types of tanks, Center Enamel Glass-Fused-to-Steel tank is an exceptional solution for leachate storage, because of its excellent resistance to chemical corrosion and abrasion ...
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Effects of tannin source and concentration from tree leaves on two species of tadpoles
Vegetation in and around freshwater ecosystems can affect aquatic organisms through production of secondary compounds, which are retained in leaves after senescence and are biologically active. Tannins can be toxic to tadpoles, but in previous studies the plant source of tannins and tannin concentration have been confounded in experimental designs. To examine the effects of the concentration ...
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Tramore landfill tank bund - civils works - case study
Construction works on a reinforced concrete secondary tank bund around the existing leachate tank have been completed at Tramore Landfill Site for Waterford County Council. The tank bund consisted of 200mm thick reinforced concrete slab and walls poured around the existing tank to provide a secondary containment of leachate in the event of failure of the primary tanks. Works involved the ...
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Characterisation and treatment of leachates from the municipal sanitary landfill of Thessaloniki, Greece
The optimum treatment technologies of leachates produced from a municipal landfill were studied in this work. Leachates composition ranged from high-strength acidic down to low-strength stabilised leachates, affecting the applicable treatment process. Efficient treatment of fresh leachates was achieved by biological methods, such as the SBR, or the moving bed processes, resulting in increased ...
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Leachate Treatment Solutions
Given its complex and changing composition with age, treating leachate has proven particularly difficult. Since 2008, China has enforced new standards for the treatment and discharge of leachate. Jiarong Technology has tackled this problem head on, now serving most of the top solid waste management companies in China. From metropolises like Beijing, Shanghai and Shenzhen, to small counties, ...
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