Results 31 to 40 of about 17,487,572 (398)

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

A Review of Remote Sensing for Water Quality Retrieval: Progress and Challenges

Remote Sensing, 2022
Water pollution has become one of the most serious issues threatening water environments, water as a resource and human health. The most urgent and effective measures rely on dynamic and accurate water quality monitoring on a large scale.
Haibo Yang, Jialin Kong, Huihui Hu, Yao Du, Meiyan Gao, Fei Chen   +5 more
semanticscholar   +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

A Hybrid Model for Water Quality Prediction Based on an Artificial Neural Network, Wavelet Transform, and Long Short-Term Memory

Water, 2022
Clean water is an indispensable essential resource on which humans and other living beings depend. Therefore, the establishment of a water quality prediction model to predict future water quality conditions has a significant social and economic value. In
Junhao Wu, Zhaocai Wang
semanticscholar   +1 more source

Using Machine Learning Models for Predicting the Water Quality Index in the La Buong River, Vietnam

Water, 2022
For effective management of water quantity and quality, it is absolutely essential to estimate the pollution level of the existing surface water. This case study aims to evaluate the performance of twelve machine learning (ML) models, including five ...
D. N. Khoi, N. Quan, D. Q. Linh, Pham Thi Thao Nhi, Nguyen Thi Diem Thuy   +4 more
semanticscholar   +1 more source

Investigation of water quality in Ambur city by water quality indexing [PDF]

The holistic approach to environment, 2020
Present study is carried out for the assessment of ground water quality and comparing its suitability for drinking purpose in Ambur city in Tirupattur District, Tamil Nadu, India. Water quality index is calculated on the basis of pH, conductivity, total dissolved solids, total hardness, Ca2+, Mg2+, Na+, K+, Cl-, alkalinity, and SO42- content of the ...
Farooqui, K. Mohiuddin, Kumar Sar, Santosh, Diwan, Vijita   +2 more
openaire   +3 more sources