Leachate Treatment Considerations in Cold Climates

2016 ◽  
Author(s):  
Sarah Partanen
Keyword(s):  
Heavy Metals ◽  
Organic Material ◽  
Treatment Process ◽  
Effect Of Temperature ◽  
Cold Climates ◽  
Leachate Treatment ◽  
Regulatory Standards ◽  
Treatment Considerations ◽  
Treatment Technologies

When water percolates through the solid waste in a landfill a leachate is generated that may contain dissolved organic material and heavy metals. Leachate can be treated in a variety of ways before being discharged, but parameters such as temperature can have an effect on the way leachate treatment is approached. In climates where the ambient temperature decreases during the winter months the leachate treatment process must be adapted to ensure the effluent being discharged meets all regulatory standards. This may include adding additional insulating elements to current technologies, or changing the technology used all together. This presentation will address the current issues associated with leachate treatment in cold climates including the effect of temperature on nitrification and denitrification. It will also examine the existing treatment technologies that are applicable for leachate treatment in cold climates and discuss their effectiveness based on the quality of the effluent being discharged.

scholarly journals Reduction of microbial risk associated with greywater by disinfection processes for irrigation

2015 ◽  
Vol 14 (3) ◽  
pp. 379-398 ◽  
Author(s):  
A. A. Al-Gheethi ◽  
R. M. S. Radin Mohamed ◽  
A. N. Efaq ◽  
M. K. Amir Hashim
Keyword(s):  
Health Risk ◽  
Pathogenic Bacteria ◽  
Treatment Process ◽  
Microbiological Quality ◽  
Present Review ◽  
Microbial Risk ◽  
Treatment Technologies ◽  
Alternative Sources ◽  
Semi Arid

Greywater is one of the most important alternative sources for irrigation in arid and semi-arid countries. However, the health risk associated with the microbial contents of these waters limits their utilization. Many techniques have been developed and used to generate a high microbiological quality of greywater. The main problem in the treatment of greywater lies in the nature of pathogenic bacteria in terms of their ability to survive during/after the treatment process. The present review focused on the health risk associated with the presence of pathogenic bacteria in greywater and the treatment technologies used for the disinfection processes.

scholarly journals Factorial Design and Optimization of Landfill Leachate Treatment Using Tannin-Based Natural Coagulant

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1349 ◽  
Author(s):  
Tawfiq J. H. Banch ◽  
Marlia M. Hanafiah ◽  
Abbas F. M. Alkarkhi ◽  
Salem S. Abu Amr
Keyword(s):  
Heavy Metals ◽  
Removal Efficiency ◽  
Landfill Leachate ◽  
Treatment Process ◽  
Oxygen Demand ◽  
Treatment Efficiency ◽  
Leachate Treatment ◽  
Natural Coagulant ◽  
Design And Optimization ◽  
Central Composite

In this study, tannin-based natural coagulant was used to treat stabilized landfill leachate. Tannin modified with amino group was utilized for the treatment process. Central composite design (CCD) was used to investigate and optimize the effect of tannin dosage and pH on four responses. The treatment efficiency was evaluated based on the removal of four selected (responses) parameters; namely, chemical oxygen demand (COD), color, NH3–N and total suspended solids (TSS). The optimum removal efficiency for COD, TSS, NH3–N and color was obtained using a tannin dosage of 0.73 g at a pH of 6. Moreover, the removal efficiency for selected heavy metals from leachate; namely, iron (Fe2+), zinc (Zn2+), copper (Cu2+), chromium (Cr2+), cadmium (Cd2+), lead (Pb2+), arsenic (As3+), and cobalt (Co2+) was also investigated. The results for removal efficiency for COD, TSS, NH3–N, and color were 53.50%, 60.26%, and 91.39%, respectively. The removal of selected heavy metals from leachate for Fe2+, Zn2+, Cu2+, Cr2+, Cd2+, Pb2+, As3+ and cobalt Co2+ were 89.76%, 94.61%, 94.15%, 89.94%, 17.26%, 93.78%, 86.43% and 84.19%, respectively. The results demonstrate that tannin-based natural coagulant could effectively remove organic compounds and heavy metals from stabilized landfill leachate.

scholarly journals Heavy Metal Removal from the Water of the River Nile Using Riverbank Filtration

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3642
Author(s):  
Mohamed H. Hegazy ◽  
Ahmed Essam ◽  
Ashraf Y. Elnaggar ◽  
Enas E. Hussein
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Treatment Process ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Riverbank Filtration ◽  
Fast Method ◽  
River Nile ◽  
Natural Treatment

Riverbank filtration (RBF) is considered as a natural treatment process. During this process, a group of chemical, physical, and biological processes occur when water moves through the soil along the bank of the River Nile, which can act as a conventional treatment process. RBF is one of the most effective solutions that the Egyptian government and responsible parties should embrace. Egypt has started to use the RBF technique widely in many sites through the path of the River Nile. This study provides a detailed analysis of the RBF technique; it represents the outlet quality of the water in a study performed on the River Nile. The effect of RBF on water quality can be measured using the software designed for this study. The study’s main aim is to improve the water quality of the River Nile by removing heavy metals from the water by using an effective and fast method of treatment, which is riverbank filtration. The results of the research’s experimental study show the average percentage of metal removal for iron, cobalt, lead, zinc, and copper are 74.04%, 74.44%, 70.72%, 75.1%, and 70.8%, respectively. These results have proved that RBF acts as a substantial barrier versus heavy metals.

Research on Leachate Treatment Process Selection of Guangxi Municipal Solid Waste Plant

2012 ◽  
Vol 260-261 ◽  
pp. 1013-1016
Author(s):  
Hao Cheng ◽  
Ming La ◽  
Jian Hua Xiong
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Treatment Process ◽  
Process Selection ◽  
Treatment Technology ◽  
Leachate Treatment ◽  
Comprehensive Investigation ◽  
Treatment Technologies ◽  
Waste Leachate ◽  
Selection Of

Based on the research of municipal solid waste leachate treatment technology in China, aiming at several typical leachate treatment technologies in the Guangxi area, this paper has made analyses and studies. It has made comprehensive investigation of materials, and has obtained the final leachate treatment technology scheme applicable in the Guangxi area.

scholarly journals Assessing behavior and fate of micropollutants during wastewater treatment: Statistical analysis

2020 ◽  
Vol 26 (5) ◽  
pp. 200359-0
Author(s):  
Yahya EL HAMMOUDANI ◽  
Fouad DIMANE
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Aromatic Hydrocarbons ◽  
Wastewater Treatment Plant ◽  
Treatment Process ◽  
Treatment Plant ◽  
Wastewater Discharge ◽  
Polycyclic Aromatic ◽  
Al Hoceima

This study examines the occurrence of micropollutants (n = 46) in raw sewage, as well as the fate of the removal performance for these substances by the Al-Hoceima city wastewater treatment plant. The treatment process removed more than 50-90% of heavy metals from the wastewater. Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls were eliminated from wastewater by 20-50%. The quality of the effluent discharged complied with national and international wastewater discharge standards. Statistical methods were applied to examine the relationships between the concentrations of micropollutants and macropollutants entering and leaving the wastewater treatment plant, and a model for estimating the production of micropollutants, based on a measurement of macro pollution parameters.

scholarly journals LEACHATE TREATMENT BY REVERSE OSMOSIS METHOD- REGIONAL SANITARY LANDFILL “ZELJKOVAC” CASE STUDY

2020 ◽  
pp. 175
Author(s):  
Natalija Tošić ◽  
Dejan Vasović ◽  
Bratimir Nešić ◽  
Nemanja Petrović
Keyword(s):  
Reverse Osmosis ◽  
Treatment Process ◽  
The Body ◽  
Sanitary Landfill ◽  
Leachate Treatment ◽  
Output Quality ◽  
Reverse Osmosis Plant ◽  
Over Time

The purpose of this paper is to elaborate a plan for the leachate treatment at the “Zeljkovac” sanitary landfill in Leskovac city. Different processes occur over time  at the landfill. The processes of infiltration and transpiration occur continuously, distributing the humidity and affecting the water balance within the body of the landfill. The landfill body acts as a giant sponge, in which water moves, and from which water can be released - both into groundwater and into the atmosphere in the form of water vapour or as a filtrate at the bottom of the landfill. In this paper, particular attention is given to the kind of waterwhich is actually filtrate from a landfill, often called leachate. The efficiency of the most commonly used methods will be presented, depending on the most prevalent pollutants  in leachate. As there are many methods for treating this kind of wastewater, the reverse osmosis method will be presented as one of the most widely used . The technological process of a reverse osmosis plant will be described, as well as the result that shows the output quality of the leachate after the treatment process. The major finding of this paper reflects a clear justification for using this method to achieve the desired efficiency of leachate treatment.

Агрономическая эффективность промышленной (голландской) технологии возделывания картофеля

2018 ◽  
Author(s):  
C. Coy ◽  
A.V. Shuravilin ◽  
O.A. Zakharova
Keyword(s):  
Heavy Metals ◽  
Regression Analysis ◽  
Positive Response ◽  
Growth Yield ◽  
Correlation And Regression Analysis ◽  
Yield And Quality ◽  
Quality Of Products ◽  
High Degree ◽  
The Impact

Приведены результаты исследований по изучению влияния промышленной технологии возделывания картофеля на развитие, урожайность и качество продукции. Выявлена положительная реакция растений на подкормку K2SO4 в период посадки. Корреляционно-регрессионный анализ урожайности и качества клубней выявил высокую степень достоверности результатов опыта. Содержание нитратов и тяжелых металлов в клубнях было ниже допустимых величин.The results of studies on the impact of industrial technology of potato cultivation on growth, yield and quality of products. There was a positive response of plants to fertilizer K2SO4 in the period of planting. Correlation and regression analysis of yield and quality of tubers revealed a high degree of reliability of the results of experience. The contents of nitrates and heavy metals in tubers was below the permissible values.

Determination of Traces Heavy Metals from Solid Residues Formed by Combustion of Lignite in Relation to Degree of Accessibility in Soil and Plants

2017 ◽  
Vol 68 (10) ◽  
pp. 2363-2366
Author(s):  
Delia Nica Badea
Keyword(s):  
Heavy Metals ◽  
Power Plant ◽  
Thermal Power ◽  
Reference Value ◽  
Combustion Products ◽  
Toxic Heavy Metals ◽  
Area Of Influence ◽  
Risk Potential

The paper evaluates the presence and content of traces of heavy metals Hg, Pb, Ni, Cd (total forms) from coal and solid combustion products, the degree of transfer and accessibility in the area of influence of a lignite power plant. The content of toxic heavy metals in residues are characterized by RE Meiji [ 1 (Pb and Hg) and REMeij �1 (Ni and Cd) for the filter ash. Pb and Ni content in the soil exceeds normal values, and Pb exceeds and alert value for sensitive soils around the residue deposit (70.20 mg.Kg-1). The degree of accessibility of the metals in plants (TF), reported at the Khan reference value (0.5), indicates a significant bioaccumulation level for the metals: Cd (1.9) and Hg (0.6) inside the deposit; Cd (0.39) at the base of the deposit, Hg (0.8) in the area of the thermal power plant. The trace levels of heavy metals analyzed by GFAAS and CVAAS (Hg), indicates a moderate risk potential for food safety and quality of life in the studied area.

Treatment and Quality of Sewage Sludge in Germany - Results of a Survey

2007 ◽  
Vol 2 (1) ◽  
Author(s):  
A. Meda ◽  
C. Schaum ◽  
M. Wagner ◽  
P. Cornel ◽  
A. Durth
Keyword(s):  
Sewage Sludge ◽  
Treatment Process ◽  
Wastewater Treatment Plants ◽  
Current Status ◽  
Sludge Treatment ◽  
Sewage Sludge Treatment ◽  
Treatment And Disposal ◽  
German Association ◽  
Entire Treatment

TIn 2004, the German Association for Wastewater, Water and Waste (DWA) carried out a survey about the current status of sewage sludge treatment and disposal in Germany. The study covered about one third of the wastewater treatment plants and about two thirds of the entire treatment capacity (expressed in population equivalents) in Germany. This provides an up-to-date and representative database. The paper presents the most important results regarding sludge treatment, process engineering, current disposal paths and sewage sludge quality.

Comparison of F-specific bacteriophage, enterococci, and faecal coliform densities through a wastewater treatment process employing oxidation ponds

1995 ◽  
Vol 31 (5-6) ◽  
pp. 85-89 ◽  
Author(s):  
S. J. Turner ◽  
G. D. Lewis
Keyword(s):  
Wastewater Treatment ◽  
Treatment Process ◽  
Faecal Coliform ◽  
Indicator Organisms ◽  
Faecal Coliforms ◽  
Wastewater Treatment Process ◽  
Oxidation Pond ◽  
Oxidation Ponds ◽  
Specific Bacteriophage

Over a 12 month period F-specific bacteriophages, faecal coliforms and enterococci were compared as microbial indicator organisms for the quality of a wastewater treatment (oxidation pond) system. Results suggest that enterococci may be the most useful indicator for oxidation pond systems.

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