Results 11 to 20 of about 4,510,333 (368)

Evaluation of Dissolved Organic Matter Removal Characteristics in GAC Adsorption Process in Drinking Water Treatment Process using LC-OCD-OND

open access: yes대한환경공학회지, 2020
Objectives In this study, we used liquid chromatograph-organic carbon detector-organic nitrogen detector (LC-OCD-OND) to evaluate adsorption and breakthrough characteristics of NOM fractions (biopolymers (BP), humic substances (HS), building blocks (BB)
Heejong Son   +4 more
doaj   +1 more source

Effect of Hydrogen Peroxide and Phosphate Addition on Biopolymers Formation and Changes in Head Loss in Biological Activated Carbon Process

open access: yes대한환경공학회지, 2020
Objectives:The purpose of this study was to suggest a more efficient operation condition for the BAC(biological activated carbon) process by evaluating the change in the concentration of biopolymers in the effluent of the BAC process and the head loss of
Heejong Son   +3 more
doaj   +1 more source

Valuing Water Quality as a Function of Water Quality Measures [PDF]

open access: yesAmerican Journal of Agricultural Economics, 2009
AbstractEmploying a unique and rich data set of water quality attributes in conjunction with detailed household characteristics and trip information, we develop a mixed logit model of recreational lake usage and undertake thorough model specification and fitting procedures to identify the best set of explanatory variables, and their functional form for
Egan, Kevin J.   +3 more
openaire   +3 more sources

Application of Enhanced BAC Process for Improving Drinking Water Treatment Efficiency

open access: yes대한환경공학회지, 2020
Objectives: In this study, we compared the properties of the attached biofilm with the ability to remove biodegradable dissolved organic carbon (BDOC) in the conventional BAC (biologically activated carbon) process and the enhanced BAC process with ...
Heejong Son   +4 more
doaj   +1 more source

Effect of Phosphate and Hydrogen Peroxide on Bacterial Community and Removal Efficiency of Biological Activated Carbon (BAC) Process for Enhanced Biofiltration

open access: yes대한환경공학회지, 2021
Objectives:The correlation between the organic material removal ability of the enhanced BAC process injected by the phosphate (PO4-P) and/or hydrogen peroxide (H2O2) and attached bacterial community was evaluated.
Eun-Young Jung   +2 more
doaj   +1 more source

Water Quality Assessment with Water Quality Indices [PDF]

open access: yesInternational Journal of Bioresource Science, 2015
A water quality index provides a single number that expresses overall water quality at a certain location and time based on several water quality parameters. Water quality index (WQI) is valuable and unique rating to depict the overall water quality status in a single term that is helpful for the selection of appropriate treatment technique to meet the
Amitava Rakshit   +2 more
openaire   +1 more source

Water Markets and Water Quality [PDF]

open access: yesAmerican Journal of Agricultural Economics, 1993
AbstractIn addition to improving the allocative efficiency of water use, water markets may reduce irrigation‐related water quality problems. This potential benefit is examined with a nonlinear programming model developed to simulate agricultural decision‐making in a drainage problem area in California's San Joaquin Valley.
Marca Weinberg   +3 more
openaire   +3 more sources

Two years after legalization: implementing the Cannabis Cultivation Policy in southern coastal California

open access: yesCalifornia Fish and Wildlife Journal, 2020
During the first two years of legal recreational cannabis cultivation in California, the State Water Resources Control Board’s Cannabis Cultivation Program enrolled 4,391 cultivators into the Cannabis General Order.
Brian M. Covellone   +4 more
doaj   +1 more source

Effect of Changes in Physical Properties of Granular Activated Carbon (GAC) on the Adsorption of Natural Organic Matter (NOM) with Increasing the Number of Thermal Regeneration: Pore Size and NOM Molecular Weight

open access: yes대한환경공학회지, 2021
Objectives:The purpose of this study was to evaluate the effect of increasing the number of regeneration of granular activated carbon (GAC) on the adsorption capacity of natural organic matter (NOM), and to suggest the technical process options ...
Heejong Son   +4 more
doaj   +1 more source

Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment

open access: yesJournal of Water and Environment Technology, 2023
We determined the concentrations of 2-methylisoborneol (2-MIB) and geosmin in final effluent from wastewater treatment plants in Kyoto City, Japan, investigating variations during treatment.
Ko Hosoda   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy