Results 31 to 40 of about 625,613 (396)

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

Performance Analysis of Integral Process of Bio-Oil Production, Bio-Oil Upgrading, and Hydrogen Production from Sewage Sludge [PDF]

E3S Web of Conferences, 2023
This research investigated the production of bio-oil through the hydrothermal liquefaction (HTL) process using sewage sludge from wastewater, along with the hydrotreating of the bio-oil.
Simasatitkul Lida, Lakkhanasombut Apiwat, Morin Worawit, Jedsadajerm Supachai, Amornraksa Suksun, Im-orb Karittha   +5 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

Global nitrogen and phosphate in urban wastewater for the period 1970 to 2050 [PDF]

, 2009
This paper presents estimates for global N and P emissions from sewage for the period 1970-2050 for the four Millennium Ecosystem Assessment scenarios.
Bouwman, A.F., Drecht, G., van, Harrison, J., Knoop, J.M.   +3 more
core   +2 more sources

Thermochemical conversion of sewage sludge for energy and resource recovery: technical challenges and prospects

Environmental Pollutants and Bioavailability, 2021
Thermochemical processes are considered as a promising technology for sewage sludge management, which could achieve volume reduction, energy and resource recovery, and effective destruction of pathogens.
Mian Hu, Zhiheng Ye, Haiyang Zhang, Baixiao Chen, Zhiyan Pan, Junliang Wang   +5 more
semanticscholar   +1 more source

Hydromorphological control of phosphorus in a large free-flowing gravel bed river: the Garonne river (France) [PDF]

, 2001
The objective of this paper is to relate phosphorus (P) transport dynamics and hydromorphological characteristics of a large human-influenced river, the River Garonne within a sector receiving the waste water of a sewage treatment plant for a population ...
Agnew, Bencala, Bennett, Bentzen, Bostrom, Boulton, Brunet, Brunke, Butturini, Campbell, Caraco, Cristofor, D'Angelo, Dokulil, Dorioz, Elwood, Findlay, Gibert, Greenwood, Hart, Hill, Hynes, Johnson, Labroue, Logan, Logan, Loigu, Maddock, Maurer, McCallister, Meyer, Meyer, Meyer, Murphy, Muscutt, Newbold, Nolan, Pinay, Ramm, Reddy, Rigler, Sim�oni-Sauvage, Steiger, Svendsen, Tockner, Valett, Vervier, Vollenweider, Ward, Young   +49 more
core   +1 more source

Sustainable risk management of emerging contaminants in municipal wastewaters [PDF]

, 2009
This article is available open access through the publisher’s website at the link below. Copyright @ 2009 The Royal Society.The presence of emerging contaminants in municipal wastewaters, particularly endocrine-disrupting compounds such as oestrogenic ...
Bennett E. R., Birkett J. W., de Voogt P., Ebinghaus R., European Environment Agency, Groombridge B., Hollert H., International Programme on Chemical Safety., Laturnus F., Petrovic M., Risks and Policy Analysts Ltd., Sheahan D. A.   +11 more
core   +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