Results 21 to 30 of about 16,513 (257)

Influence of hydraulic retention time and carbon loading rate on the production of algae [PDF]

Journal of Biotechnology, 2018
This paper is focused on the assessment of the production of algae in batch bioreactors. Hydraulic retention time, carbon loading rate and light color were the inputs of the study and algae production the main output. Bioreactors were operated in semi-continuous mode and tests lasted two months, more than two times the period required to meet a steady ...
C.M. Fernandez-Marchante, Y. Asensio, J. Lobato, J. Villaseñor, P. Cañizares, M.A. Rodrigo   +5 more
openaire   +2 more sources

Potential of the retention capability of a Neotropical reservoir (São Paulo State, Brazil) [PDF]

Acta Limnologica Brasiliensia, 2023
: Aim Man-made reservoirs lead to several changes in their downstream rivers that depend on the hydraulic characteristics of the reservoirs. However, their multiple uses can also provide facilities that influence the ecosystem services that they provide.
Flavia Bottino, Simone Pereira Casali, Marcela Bianchessi Cunha-Santino, Maria do Carmo Calijuri, Irineu Bianchini Júnior   +4 more
doaj   +1 more source

Effects of Hydraulic Retention Time and Solid Retention Time of POME on COD Removal Efficiency

International Journal of Automotive and Mechanical Engineering, 2018
The aim of this paper is to report on the effects of Hydraulic Retention Time (HRT) and Sludge Retention Time (SRT) on the removal of Chemical Oxygen Demand (COD) from palm oil mill effluent (POME). In this study, an upflow anaerobic reactor was used to evaluate the effects of HRT at 6, 8 10, 12 and 15 days.
Islam, M.S., Baini, R., Tanjong, S.J, Said, M.A.M, Joy, E.J   +4 more
openaire   +2 more sources

Treatment of Piggery Wastewater by Three Grass Species Growing in a Constructed Wetland

Applied Environmental Research, 2017
The study aimed to investigate the efficiency of piggery wastewater treatment by the surface flow constructed wetland with three different grass species; bulrush (Scirpus spp.), cattail (Typha angustifolia L.), and vetiver grass (Vetiveria zizanioides L.
Supaporn Pongthornpruek
doaj   +7 more sources

Long-term impact of cover crop and reduced disturbance tillage on soil pore size distribution and soil water storage [PDF]

SOIL, 2022
We studied the long-term impact of contrasting tillage and cover cropping systems on soil structure and hydraulic properties. Complete water retention and conductivity curves for the top (0–5 cm) and subsurface (20–25 cm) soils were characterized and ...
S. N. Araya, J. P. Mitchell, J. W. Hopmans, T. A. Ghezzehei   +3 more
doaj   +1 more source

Assessment of the start-up of tubular reactors on a laboratory scale for the anaerobic digestion of slaughterhouse wastewater

International Journal of Thermofluids, 2023
Slaughterhouse wastewater is a source of contamination due to its high content of organic matter, nutrients, and suspended solids. Anaerobic digestion (AD) is a biological treatment that reduces the organic load of liquid effluents and generates biogas ...
Carlos W. Guamán-Marquines, Rolando J. Mendoza-Loor, Yunet Gómez-Salcedo, Ricardo J. Baquerizo-Crespo   +3 more
doaj   +1 more source

Effect of hydraulic retention time on pretreatment of blended municipal sludge

Water Science and Technology, 2011
The objective of the present work was to evaluate the effect of hydraulic retention time (HRT) on hydrolysis and acidogenesis for the pretreatment processes: acid phase digestion (APD) and autothermal thermophilic aerobic digestion (ATAD) using blended municipal sludge.
S, Koyunluoglu-Aynur, R, Riffat, S, Murthy   +2 more
openaire   +2 more sources

Influence of hydraulic retention time on the psychrophilic hydrolysis/acidogenesis of proteins

Water Science and Technology, 2016
The influence of the hydraulic retention time (HRT) on the anaerobic hydrolysis of complex substrates has been studied under psychrophilic conditions. For this purpose, a continuous stirred tank reactor was operated at 15 °C and neutral pH and gelatin was considered as a model protein. Three HRTs have been tested: 12, 21 and 36 h.
Paola, Poirrier, María Cristina, Schiappacasse, Marta, Carballa, Juan M, Lema   +3 more
openaire   +2 more sources

Assessment of Rainwater Retention Efficiency in Urban Drainage Systems—Model Studies

Resources, 2022
Around the world, there is growing interest in the use of rainwater retention, and in particular channel retention, as part of urban drainage systems. This is made possible by means of intentional damming of rainwater in the existing sewer collectors in ...
Kamil Pochwat
doaj   +1 more source

Elimination of excreted pathogens and effluent reuse issues; national framework for designing waste stabilization ponds [PDF]

E3S Web of Conferences
The main objective of this research is to establish a national framework to give requirements for effective design of waste stabilization ponds WSP for treating municipal wastewater in Libya, including specific information relating to removal (Faecal ...
Faskol Adel S.
doaj   +1 more source