Leachate characteristics, applied technologies and energy demand for leachate treatment were investigated through survey in different states of Germany. Based on statistical analysis of leachate quality data from 2010 to 2015, almost half of the contaminants in raw leachate satisfy direct discharge limits. Decrease in leachate pollution index of current landfills is mainly related to reduction in concentrations of certain heavy metals (Pb, Zn, Cd, Hg) and organics (biological oxygen demand (BOD), chemical oxygen demand (COD), and adsorbable organic halogen (AOX)). However, contaminants of concern remain COD, ammonium-nitrogen (NHN) and BOD with average concentrations in leachate of about 1850, 640, and 120 mg/L respectively. Concentrations of COD and NHN vary seasonally, mainly due to temperature changes; concentrations during the first quarter of the year are mostly below the annual average value. Electrical conductivity (EC) of leachate may be used as a time and cost saving alternative to monitor sudden changes in concentration of these two parameters, due to high correlations of around 0.8 with both COD and NHN values which are possibly due to low heavy metal concentrations in leachate. The decreased concentrations of heavy metals and BOD favor the retrofitting of an existing biological reactor (nitrification/denitrification) with the deammonification process and post denitrification, as this lowers average annual operational cost (in terms of energy and external carbon source) and CO emission by €25,850 and 15,855 kg CO respectively.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jenvman.2016.10.061 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Impact of leachate from boiled-water-treated plastic products on male reproductive health: Insights from transcriptomic and metabolomic profiling.
Ecotoxicol Environ Saf
January 2025
Department of Urology & Andrology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China. Electronic address:
Given the extensive use of plastic materials in modern society, there is an escalating concern about the potential risks associated with exposure to plastic products. This study investigated the impact of plastic leachates from boiled-water-treated cups, including polypropylene (PP), high-density polyethylene (HDPE), low-density polyethylene (LDPE), polystyrene (PS), and polyethylene terephthalate (PET), on male reproductive health. Experimental mice were administered daily doses of the plastic leachates for 180 consecutive days.
View Article and Find Full Text PDFEffect of a high Cl concentration on the transformation of waste leachate DOM by the UV/PMS system: A mechanistic study using the Suwannee River natural organic matter (SRNOM) as a simulator of waste leachate DOM.
J Hazard Mater
January 2025
School of Environmental Science and Engineering, Southwest Jiaotong University, Sichuan, Chengdu 611756, China. Electronic address:
The ultraviolet-activated peroxymosnofulate (UV/PMS) system, an effective advanced oxidation process for removing dissolved organic matter (DOM) from wastewater, is limited by high chloride ion (Cl) concentrations in landfill leachate. This study used Fourier transform ion cyclotron resonance mass spectrometry to explore the transformation of DOM in the UV/PMS system with a high Cl concentration. The results revealed that elevated Cl levels generate reactive chlorine species, including chlorine radicals, dichlorine radicals, and hypochlorous acid/hypochlorite, reducing the total organic carbon (TOC) removal efficiency of Suwannee River natural organic matter (SRNOM) from 78.
View Article and Find Full Text PDFEnvironmental impact of disposable face masks: degradation, wear, and cement mortar incorporation.
Environ Sci Pollut Res Int
January 2025
CERENA - Civil Engineering Research and Innovation for Sustainability, IST-ID, Av. António José de Almeida 12, 1049-001, Lisbon, Portugal.
Polypropylene (PP) disposable face masks (DFMs) are essential for limiting airborne infectious diseases. This study examines the behavior of DFMs under three scenarios: (i) exposure to the natural environment, (ii) simulated high-energy aquatic environments through an abrasion test, and (iii) incorporation into cement-based mortars. In the natural weathering experiment, after 117 days, the DFMs exhibited photodegradation, resulting in chemical alterations in carbonyl and hydroxyl groups.
View Article and Find Full Text PDFBioprospecting indigenous bacteria from landfill leachate for enhanced polypropylene microplastics degradation.
J Hazard Mater
January 2025
Bioprocesses Engineering Laboratory, Department of Civil Engineering, National Institute of Technology Karnataka, Surathkal 575025, India. Electronic address:
Plastic pollution, especially microplastics (MPs), is a severe environmental threat. Due to the significant environmental issues posed by plastics, it is critical to use an effective and sustainable degradation technique. The study aimed to isolate and identify Indigenous bacterial strains from landfill leachate (LL) to evaluate its potential for degrading Polypropylene microplastics (PPMPs).
View Article and Find Full Text PDFPolyurethane microplastics and associated tris(chloropropyl)phosphate additives both affect development in larval fathead minnow Pimephales promelas.
Environ Toxicol Chem
January 2025
Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada.
Microplastics (< 5 mm) are a diverse class of contaminants ranging in morphology, polymer type, and chemical cocktail. Microplastic toxicity can be driven by one or a combination of these characteristics. Most studies, however, evaluate the physical effect of the most commercially available polymers.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!