Results 11 to 20 of about 73,328 (246)

An evaluation of the adsorption process in removing organic substances in a pilot flow-type surface water treatment system

E3S Web of Conferences, 2018
This article presents the results of the adsorption process effectiveness in treating surface water, especially in removing organic substances. The effectiveness of the adsorption system was evaluated at different levels of adsorption capacity exhaustion
Wolska Małgorzata, Mołczan Marek, Szerzyna Sławomir, Adamski Wojciech, Wiśniewski Jacek, Ferenc Zbigniew, Sambor Aleksandra, Żółtowska Małgorzata   +7 more
doaj   +1 more source

Effect of Low-Temperature Conditioning of Excess Dairy Sewage Sludge with the Use of Solidified Carbon Dioxide on the Efficiency of Methane Fermentation

Energies, 2020
This study aimed to determine the effect of the low-temperature conditioning of excess dairy sewage sludge using solidified carbon dioxide on the efficiency of methane fermentation.
Joanna Kazimierowicz, Izabela Bartkowska, Maria Walery   +2 more
doaj   +1 more source

A large-scale wastewater treatment plant operation experience and process control analysis in Zhengzhou

Gongye shui chuli
Stable operation of wastewater plants under overload has been a hot spot of concern for researchers，and efficient nitrogen and phosphorus removal is a difficult point in the process of stable operation.
WANG Ronghong, FAN Xiaolong, MAO Di, YI Haiming, WANG Ning, MA Yuanyuan, ZHANG Dewei   +6 more
doaj   +1 more source

A 2006 Survey of Drinking Water Microbial Quality in Rural Areas in IRAN (Limitations, Challenges, and Opportunities) [PDF]

آب و فاضلاب, 2008
In the first quarter of the year 2007, the number of rural laboratories had grown from 90 units in the year 2003 to 166 units, showing a 87.93% growth while the quality parameters in the years 2004 and 2006 increased from 90.13 to 91.43% for residual ...
Majid Ghannadi, Mohammad Reza Mohebbi
doaj  

Effect of the presence of Actinomycetes in the activated sludge on the quality of the treated wastewater

E3S Web of Conferences, 2017
The aim of the study was to determine the effect of the Actinomycetes proliferation in the activated sludge on the quality of the treated wastewater and the sewage receiver. The river which is the sewage receiver flows near the wastewater treatment plant.
Bezak-Mazur Elżbieta, Stoińska Renata, Rajca Jolanta, Łatasiewicz Beata   +3 more
doaj   +1 more source

Effect of Saline Water Irrigation and Dilution of Salts on Water Management Water in Green Pepper

Pakistan Journal of Engineering & Technology, 2021
Irrigation has an important role in food production worldwide by increasing crop quality and production. As such, the use of fresh water for agricultural or vegetable products is declining in quantity and quality over the coming decades.
Muhammad Arshad, Muhammad Kaleem Ullah, Asad Iqbal, Muhammad Usman Tariq, Ahmad Waqas   +4 more
doaj   +1 more source

Standards for the Dimensioning and Assessment of Reliable Operations of Area Drainage Systems under Conditions of Climate Change

Technical Transactions, 2018
Contemporary area drainage dimensioning standards are presented in this paper. Hazards for drainage systems arising from climate changes are discussed and trends of changes in the precipitation structure are presented using the example of data obtained ...
Kotowski Andrzej, Nowakowska Monika
doaj   +1 more source

Antimicrobial profile of non-typhoidal Salmonella isolated from raw sewage in the Metropolitan Region of São Paulo, Brazil

Journal of Infection in Developing Countries, 2023
Introduction: Non-typhoidal Salmonella (NTS), are frequently found in sewage and are one of the main causes of diarrhea in developed and developing countries due to poor sanitation conditions.
Solange Martone-Rocha, Milena Dropa, Beatriz Moreira Calixto da Cruz, Débora Belisário Mendes Oliveira Leite, Talita Pereira dos Santos, Maria Tereza Pepe Razzolini   +5 more
doaj   +1 more source

Highly Resolved Community Sewage Metagenomics Unveiling Landscape and Transmission Patterns of Antibiotic Resistome in Hong Kong Populations

Advanced Science, EarlyView.
A large‐scale, high‐resolution antimicrobial resistance (AMR) surveillance in Hong Kong community sewage combining short‐ and long‐read sequencing. The resistome profile is comprehensively characterized, and this upstream sampling strategy demonstrated superiority in reflecting the human gut resistome.
Jiahui Ding, Mengying Wang, Xiaoqing Xu, Dou Wang, Xi Chen, Shuxian Li, Xiawan Zheng, You Che, Yu Deng, Tommy T. Y. Lam, Liguan Li, Tong Zhang   +11 more
wiley   +1 more source

某污水厂MBR膜超年限运行的关键因素评估

Jingshui jishu
【目的】膜生物反应器(MBR)工艺因其出水水质好和占地面积小等优点在城镇污水处理领域(尤其是地下污水处理厂)应用广泛，但膜材质固有缺陷引发的长期运行问题(高断丝率、膜通量衰减、出水水质波动),成为制约MBR发展的首要影响因素，且导致其工艺投资及运行成本均较高。【方法】华南地区某市政污水厂MBR运营人员通过优化工艺调控策略，将设计寿命为5年的中空纤维超滤膜的实际运行寿命延长至10年，且该批MBR出水水质优于一级A标准，并未出现明显的截留效能下降问题 ...
CHEN Zebin, ZHANG Yingyu, TANG Xia
doaj   +1 more source