Results 11 to 20 of about 1,382,506 (269)

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

대한환경공학회지, 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, Eun-Young Jung, Hee-Young Kim, Sang-Goo Kim   +3 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

대한환경공학회지, 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, Byungryul An, Heejong Son   +2 more
doaj   +1 more source

Application of Enhanced BAC Process for Improving Drinking Water Treatment Efficiency

대한환경공학회지, 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, Eun-Young Jung, Hoon-Sik Yoom, Sang-Goo Kim, Sung Kyu Maeng   +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

대한환경공학회지, 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, Sangki Choi, Byungryul An, Hyejin Lee, Hoon-Sik Yoom   +4 more
doaj   +1 more source

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

California 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, Celia S. Pazos, Eric T. Lindberg, Pamela Ybarra, Maher A. Zaher   +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

Journal 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, Yasutaka Yasui, Mitsuharu Nishikawa, Kento Iwatani, Tomoyuki Ohara, Syunichiro Fujiwara, Toshiharu Segawa   +6 more
doaj   +1 more source

Predicting Cyanobacterial Blooms Using Hyperspectral Images in a Regulated River

Sensors, 2021
Process-based modeling for predicting harmful cyanobacteria is affected by a variety of factors, including the initial conditions, boundary conditions (tributary inflows and atmosphere), and mechanisms related to cyanobacteria growth and death. While the
Jung Min Ahn, Byungik Kim, Jaehun Jong, Gibeom Nam, Lan Joo Park, Sanghyun Park, Taegu Kang, Jae-Kwan Lee, Jungwook Kim   +8 more
doaj   +1 more source

Electrocoagulation treatment of swine slaughterhouse wastewater: effect of electrode material [PDF]

E3S Web of Conferences, 2019
A slaughterhouse is one of the main sources of wastes in meat establishments where animals are killed for consumption as food products. Slaughtering animal processing industries generate a large volume of wastewaters containing very high concentrations ...
Cruz Kathlia D., Francisco Janine Therese J., Mellendrez Kristine Jhalene M., Pineda Jermaine Marianne F.   +3 more
doaj   +1 more source

Watershed environmental impact assessment for extreme climates based on shared socioeconomic pathway climate change scenarios

Ecological Indicators, 2023
Abnormal climate phenomena that exceed conventional weather observations occur worldwide, such as severe floods, droughts, and environmental issues, and have attracted increasing attention.
Jung Min Ahn, Jungwook Kim, Hongtae Kim, Kyunghyun Kim   +3 more
doaj   +1 more source

Agroresidues enhanced peroxidase activity expression by Bacillus sp. MABINYA-1 under submerged fermentation

Bioresources and Bioprocessing, 2020
Agroresidues have continued to gain preference over conventional carbon sources for microbial enzyme production due to the low price and abundance in the environment. Therefore, this study aimed at improving peroxidase yield by Bacillus sp.
Ayodeji O. Falade, Leonard V. Mabinya, Anthony I. Okoh, Uchechukwu U. Nwodo   +3 more
doaj   +1 more source