Mecoprop (MCPP) removal in full-scale rapid sand filters at a groundwater-based waterworks

Hedegaard, Mathilde Jørgensen; Arvin, Erik; Corfitzen, Charlotte B.; Albrechtsen, Hans‐Jørgen

doi:10.1016/j.scitotenv.2014.08.052

Cited by 36 publications

(27 citation statements)

References 18 publications

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“…Similarly, in a Danish waterworks, trace concentrations of MCPP were removed from contaminated ground-water by filtering through a sand filter (17). These studies show that phenoxypropionate degrader bacteria are present to some extent in the groundwater environment and under appropriate conditions may be enriched to present a significant degradation potential.…”

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confidence: 87%

Establishment of Bacterial Herbicide Degraders in a Rapid Sand Filter for Bioremediation of Phenoxypropionate-Polluted Groundwater

Feld

Nielsen

Hansen

et al. 2016

Appl Environ Microbiol

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In this study, we investigated the establishment of natural bacterial degraders in a sand filter treating groundwater contaminated with the phenoxypropionate herbicides (RS)-2-(4-chloro-2-methylphenoxy)propanoic acid (MCPP) and (RS)-2-(2,4-dichlorophenoxy)propanoic acid (DCPP) and the associated impurity/catabolite 4-chlorophenoxypropanoic acid (4-CPP). A pilot facility was set up in a contaminated landfill site. Anaerobic groundwater was pumped up and passed through an aeration basin and subsequently through a rapid sand filter, which is characterized by a short residence time of the water in the filter. For 3 months, the degradation of DCPP, MCPP, and 4-CPP in the sand filter increased to 15 to 30% of the inlet concentration. A significant selection for natural bacterial herbicide degraders also occurred in the sand filter. Using a most-probable-number (MPN) method, we found a steady increase in the number of culturable phenoxypropionate degraders, reaching approximately 5 ؋ 10 5 degraders per g sand by the end of the study. Using a quantitative PCR targeting the two phenoxypropionate degradation genes, rdpA and sdpA, encoding stereospecific dioxygenases, a parallel increase was observed, but with the gene copy numbers being about 2 to 3 log units higher than the MPN. In general, the sdpA gene was more abundant than the rdpA gene, and the establishment of a significant population of bacteria harboring sdpA occurred faster than the establishment of an rdpA gene-carrying population. The identities of the specific herbicide degraders in the sand filter were assessed by Illumina MiSeq sequencing of 16S rRNA genes from sand filter samples and from selected MPN plate wells. We propose a list of potential degrader bacteria involved in herbicide degradation, including representatives belonging to the Comamonadaceae and Sphingomonadales.G roundwater is a valuable resource that is used for drinking water in many countries all over the world. The quality of the water is vital to our health, and regulations have been made to control the concentration of contaminants and protect the groundwater (1). A major concern is leaching of pesticides mainly from agricultural areas but also from urban areas or from point sources (2). In the European Union, a legal threshold limit has been set at 0.1 g/liter for any given pesticide or 0.5 g/liter for a total concentration of mixed pesticides in drinking water (3).In Denmark, monitoring of the groundwater status has detected pesticides in almost 40% of the investigated wells, and the concentrations exceed the allowed threshold limit in 12% of the wells (4). Phenoxypropionate herbicides, including the compounds (RS)-2-(2,4-dichlorophenoxy)propanoic acid (known as DCPP or dichlorprop) and (RS)-2-(4-chloro-2-methylphenoxy)propanoic acid (known as MCPP or mecoprop), are among the pesticides frequently found in contaminated wells (4). The herbicides are, in particular, a problem in old landfill areas, from where they are leaching into the groundwater as a point source contamination (5). Phe...

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confidence: 87%

Establishment of Bacterial Herbicide Degraders in a Rapid Sand Filter for Bioremediation of Phenoxypropionate-Polluted Groundwater

Feld

Nielsen

Hansen

et al. 2016

Appl Environ Microbiol

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“…Although rapid sand filters are not designed for biological removal of trace organic contaminants such as pharmaceuticals and pesticides, their potential to degrade such compounds has been demonstrated in previous studies (3,(16)(17)(18). Rapid sand filters could thus be an inexpensive and sustainable alternative to granular activated carbon (GAC) or advanced oxidation processes (17). Since pesticide degradation in full-scale waterworks would occur at very low concentrations (< 0.1 µg/L), it is challenging to monitor the formation of transformation products and degradation pathways in real systems.…”

Section: Introductionmentioning

confidence: 99%

Microbial degradation pathways of the herbicide bentazone in filter sand used for drinking water treatment

Hedegaard

Prasse

Albrechtsen

2019

Environ. Sci.: Water Res. Technol.

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“…Treatment of wastewater to obtain the purity required for differents uses such as culture irrigation is therefore an important key. In addition, in the agricultural sector one of the most important problems is the large use of herbicides and pesticides . MOFs have recently attracted attention as promising materials for liquid‐phase adsorption of hazardous sulfur‐containing compounds (SCCs) and nitrogen‐containing compounds (NCCs) and also as useful adsorbents for oil‐removing operations in water purification processes .…”

Section: Mofs For Water Air and Fuel Purification And Horticulturementioning

confidence: 99%

“…In addition, in the agricultural sector one of the most important problems is the large use of herbicides and pesticides. 166 MOFs have recently attracted attention as promising materials for liquid-phase adsorption of hazardous sulfur-containing compounds (SCCs) 167 and nitrogen-containing compounds (NCCs) 168 and also as useful adsorbents for oil-removing operations in water purification processes. 169 The main limitation is generally their high affinity for water, which reduces their ability in cleanup operations.…”

Section: Mofs For Water Air and Fuel Purification And Horticulturementioning

confidence: 99%

Application of metal − organic frameworks

Pettinari

Marchetti

Mosca

et al. 2017

Polymer International

196

106

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The burgeoning field of metal − organic frameworks or porous coordination polymers has received increasing interest in recent years. In the last decade these microporous materials have found several applications including storage and separation of gases, sensors, catalysis and functional materials. In order to better design new metal − organic frameworks and porous coordination polymers with specific functionalities a fundamental issue is to achieve a basic understanding of the relationship between molecular parameters and structures, preferred adsorption sites and properties by using using modern theoretical methods. The focus of this mini-review is a description of the potential and emerging applications of metal − organic frameworks.

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Mecoprop (MCPP) removal in full-scale rapid sand filters at a groundwater-based waterworks

Cited by 36 publications

References 18 publications

Establishment of Bacterial Herbicide Degraders in a Rapid Sand Filter for Bioremediation of Phenoxypropionate-Polluted Groundwater

Establishment of Bacterial Herbicide Degraders in a Rapid Sand Filter for Bioremediation of Phenoxypropionate-Polluted Groundwater

Microbial degradation pathways of the herbicide bentazone in filter sand used for drinking water treatment

Application of metal − organic frameworks

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