Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Occurrence of contaminants in drinking water sources and the potential of biochar for water quality improvement
T2 - A review
AU - Palansooriya, Kumuduni Niroshika
AU - Yang, Yi
AU - Tsang, Yiu Fai
AU - Sarkar, Binoy
AU - Hou, Deyi
AU - Cao, Xinde
AU - Meers, Erik
AU - Rinklebe, Jörg
AU - Kim, Ki Hyun
AU - Ok, Yong Sik
PY - 2020/1/1
Y1 - 2020/1/1
N2 - In this work, the occurrence of contaminants in drinking water sources was described in relation to their treatment options based on both conventional (e.g., coagulation-flocculation, sedimentation filtration, and chlorination) and advanced treatment techniques (e.g., membrane filtration, ozonation, and biofiltration). However, due to apparent drawbacks of these methods (e.g., formation of disinfection by-products (DBPs)), it is desirable to develop an alternative option for safe drinking water. In this respect, biochar is recognized as an effective candidate to resolve the limitations in treating common pollutants typically occurring in drinking water such as microbial contaminants, inorganic contaminants, heavy metals, volatile organic compounds (VOCs), pharmaceuticals and personal care products (PPCPs), and endocrine disrupting chemicals (EDCs). As biochar can exhibit different types of interactions with adsorbates, its sorption processes can be explained by diverse mechanisms, e.g., π-π electron donor-acceptor interactions, complexation, precipitation, H-bonding, and electrostatic attraction. In light of the attractive features of biochar (e.g., enhanced sorption properties, cost-effectiveness, and environmentally friendly nature), we offer in-depth discussion on biochar-based water treatment technologies for large-scale water purification operation. Highlights Occurrence of various contaminants in drinking water sources are discussed. Human health impacts of exposure to drinking water contaminants are highlighted. Performances and limitations of conventional and advanced water treatment technologies are discussed. Potentials of pristine and modified biochars for drinking water purification are emphasized. Feasibility and importance of biochar-based large-scale water treatment technologies are highlighted.
AB - In this work, the occurrence of contaminants in drinking water sources was described in relation to their treatment options based on both conventional (e.g., coagulation-flocculation, sedimentation filtration, and chlorination) and advanced treatment techniques (e.g., membrane filtration, ozonation, and biofiltration). However, due to apparent drawbacks of these methods (e.g., formation of disinfection by-products (DBPs)), it is desirable to develop an alternative option for safe drinking water. In this respect, biochar is recognized as an effective candidate to resolve the limitations in treating common pollutants typically occurring in drinking water such as microbial contaminants, inorganic contaminants, heavy metals, volatile organic compounds (VOCs), pharmaceuticals and personal care products (PPCPs), and endocrine disrupting chemicals (EDCs). As biochar can exhibit different types of interactions with adsorbates, its sorption processes can be explained by diverse mechanisms, e.g., π-π electron donor-acceptor interactions, complexation, precipitation, H-bonding, and electrostatic attraction. In light of the attractive features of biochar (e.g., enhanced sorption properties, cost-effectiveness, and environmentally friendly nature), we offer in-depth discussion on biochar-based water treatment technologies for large-scale water purification operation. Highlights Occurrence of various contaminants in drinking water sources are discussed. Human health impacts of exposure to drinking water contaminants are highlighted. Performances and limitations of conventional and advanced water treatment technologies are discussed. Potentials of pristine and modified biochars for drinking water purification are emphasized. Feasibility and importance of biochar-based large-scale water treatment technologies are highlighted.
KW - biochar
KW - contaminants
KW - drinking water
KW - water quality
KW - water treatment
U2 - 10.1080/10643389.2019.1629803
DO - 10.1080/10643389.2019.1629803
M3 - Journal article
AN - SCOPUS:85068217629
VL - 50
SP - 549
EP - 611
JO - Critical Reviews in Environmental Science and Technology
JF - Critical Reviews in Environmental Science and Technology
SN - 1064-3389
IS - 6
ER -