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Adaptation of semi-continuous anaerobic sludge digestion to humic acids \ Water research : the journal of the International Association on Water Quality [Artikel]
Li, J. \ Hao, X. \ Loosdrecht, M.C.M. van \ Yu, J. \ Liu, R. \ 2019
Anaerobic digestion (AD) is a technology for recovering chemical energy as methane from excess sludge/ waste. Unfortunately, humic acids (HA) contained in excess sludge can have the effects of inhibiting the efficiency of energy conversion. Based on ...
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Assessment of Using Low-frequency Ultrasound Device for Domestic Drinking Water Disinfection [Studentenverslag]
Hao, W. \ [2018]
Microorganisms may cause problems in drinking water distribution system (DWDS). It is hard to control and always forms the biofilm, which can result in the deterioration of drinking water quality. At household’s tap, due to the favorable conditions, ...
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Enrichment of highly settleable microalgal consortia in mixed cultures for effluent polishing and low-cost biomass production \ Water research : the journal of the International Association on Water Quality [Artikel]
Hu, Y. \ Hao, X. \ Loosdrecht, M. van \ Chen, H. \ 2017
Microalgae cultivation is a promising technology for integrated effluent polishing and biofuel production, but poor separability of microalgal cells hinders its industrial application. This study intended to selectively enrich settleable microalgal c ...
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Large-scale demonstration of the sulfate reduction autotrophic denitrification nitrification integrated (SANI®) process in saline sewage treatment \ Water research : the journal of the International Association on Water Quality [Artikel]
Wu, D. \ Ekama, G.A. \ Chui, H.-K. \ Wang, B. \ Cui, Y.-X. \ Hao, T.-W. \ Loosdrecht, M.C.M. van \ Chen, G.-H. \ 2016
Recently, the Sulfate reduction Autotrophic denitrification Nitrification Integrated (SANI®) process was developed for the removal of organics and nitrogen with sludge minimization in the treatment of saline sewage (with a Sulfate-to-COD ratio > 0.5 ...
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A review of biological sulfate conversions in wastewater treatment \ Water research : the journal of the International Association on Water Quality [Artikel]
Hao, T.W. \ Xiang, P.Y. \ Mackey, H.R. \ Chi, K. \ Lu, H. \ Chui, H.K. \ Loosdrecht, M.C.M. van \ Chen, G.H. \ 2014
Treatment of waters contaminated with sulfur containing compounds (S) resulting from seawater intrusion, the use of seawater (e.g. seawater flushing, cooling) and industrial processes has become a challenging issue since around two thirds of the worl ...
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Granulation of anaerobic sludge in the sulfate-reducing up-flow sludge bed (SRUSB) of SANI process \ Water science and technology : a journal of the International Association on Water Pollution Research [Artikel]
Hao, T. \ Lu, H. \ Chui, H.K. \ Loosdrecht, M.C.M. van \ Chen, G.H. \ 2013
This study reports on anaerobic sludge granulation in a laboratory-scale sulfate-reducing up-flow sludge bed (SRUSB) in a novel sulfate reduction, autotrophic denitrification and nitrification integrated (SANI) process for treatment of saline sewage. ...
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Characterization of sulfate-reducing granular sludge in the SANI proces \ Water research : the journal of the International Association on Water Quality [Artikel]
Hao, T. \ Wei, L. \ Lu, H. \ Chui, H. \ Mackey, H.R. \ Loosdrecht, M.C.M. van \ Chen, G. \ 2013
Hong Kong practices seawater toilet flushing covering 80% of the population. A sulfur cycle-based biological nitrogen removal process, the Sulfate reduction, Autotrophic denitrification and Nitrification Integrated (SANI) process, had been developed ...
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Phosphorus release and uptake during start-up of a covered and non-aerated sequencing batch reactor with separate feeding of VFA and sulfate \ Water science and technology : a journal of the International Association on Water Pollution Research [Artikel]
Wu, D. \ Hao, T. \ Lu, H. \ Chui, H.K. \ Loosdrecht, M.C.M. van \ Chen, G.H. \ 2012
The purpose of this study was to confirm the existence of enhanced biological phosphorus removal (EBPR) in an extended Sulfate reduction Autotrophic denitrification Nitrification Integrated (SANI) process. This study explored a sulfur cycle-associate ...
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Evaluating sludge minimization caused by predation and viral infection based on the extended activated sludge model No. 2d \ Water research : the journal of the International Association on Water Quality [Artikel]
Hao, X. \ Wang, Q. \ Cao, Y. \ Loosdrecht, M.C.M. van \ 2011
The Activated Sludge Model No. 2d (ASM2d) was extended to incorporate the processes of both predation and viral infection. The extended model was used to evaluate the contributions of predation and viral infection to sludge minimization in a sequenci ...
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Measuring the activities of higher organisms in activated sludge by means of mechanical shearing pretreatment and oxygen uptake rate \ Water research : the journal of the International Association on Water Quality [Artikel]
Hao, X. \ Wang, Q. \ Cao, Y. \ Loosdrecht, M.C.M. van \ 2010
This article was intended to develop a new pretreatment approach to eradicate higher organisms in activated sludge. For this purpose, a mechanical shearing method was applied to eradicate higher organisms but to leave bacteria intact. In the develope ...
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Evaluation of genetic diversity and relationships within and between two breeds of duck based on microsatellite markers \ Progress in natural science : communications from state key laboratories of China [Artikel]
Wu, F. \ Huang, Y. \ Ma, Y. \ Hu, S. \ Hao, J. \ Li, N. \ 2009
The genetic diversity of two natural populations (M, N) of Beijing duck (Anas platyrhynchos) and 11 artificially selected lines of Beijing duck (A, B, E-L, O) from China Gold Star Duck Production Ltd., along with two Cherry Valley duck lines (C and D ...
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Experimental evaluation of decrease in bacterial activity due to cell death and activity decay in activated sludge \ Water research : the journal of the International Association on Water Quality [Artikel]
Hao, X. \ Wang, Q. \ Zhang, X. \ Cao, Y. \ Mark Loosdrecht, C.M.v \ 2009
Decrease in bacterial activity (cell decay) in activated sludge can be attributed to cell death (reduction in the amount of active bacteria) and activity decay (reduction in the specific activity of active bacteria). The aim of this experimental stud ...
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Struvite formation, analytical methods and effects of pH and Ca(2+) \ Water science and technology : a journal of the International Association on Water Pollution Research [Artikel]
Hao, X.D. \ Wang, C.C. \ Lan, L. \ Loosdrecht, M.C.M. van \ 2008
Chemical precipitation of struvite (MgNH4PO4·6H2O) from phosphate-rich wastewater (anaerobic supernatant, urine and/or animal wastes) is increasingly getting global attention for resource recovery and closing nutrient cycles. Recovered struvite is co ...
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Crop-goat integration \ LEISA : ILEIA newsletter for low-external-input and sustainable agriculture [Artikel]
Hao, N. \ Dong, T. \ 2005
Verslag van de ontwikkeling en impact van de integratie van de productie van geiten in bestaande landbouwbedrijfsystemen in Vietnam.
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Model-based evaluation of oxygen consumption in a partial nitrification–Anammox biofilm process \ Water science and technology : a journal of the International Association on Water Pollution Research [Artikel]
Hao, X.D. \ Cao, X.Q. \ Picioreanu, C. \ 2005
Previous modelling studies indicated that DO was a key factor controlling a partial nitrification–Anammox biofilm process (CANON). As a design parameter, therefore, aeration becomes critical in engineering. Aeration depends on oxygen consumption (OC) ...
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Welfare reform and teenage pregnancy, childbirth, and school dropout \ Journal of marriage and the family : quarterly journal / National Council on Family Relations [Artikel]
Hao, L. \ Cherlin, A.J. \ 2004
This study estimates the effects of welfare reform on adolescent behaviors using a difference-indifferences approach. After defining the pre-reform and reform cohorts and considering the life course development of adolescent behavior by following eac ...
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Model-based evaluation of COD influence on a partial nitrification-Anammox biofilm (CANON) process [special issue 5th International conference on biofilm systems] \ Water science and technology : a journal of the International Association on Water Pollution Research [Artikel]
Hao, X.D. \ Loosdrecht, M.C.M. van \ 2004
A model evaluating COD influence on a partial nitrification-Anammox biofilm process is integrated on the basis of heterotrophic growth as described in ASM3, combined with a previously published model for the CANON process. This integrated model can s ...
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A proposed sustainable BNR plant with the emphasis on recovery of COD and phosphate \ Water science and technology : a journal of the International Association on Water Pollution Research [Artikel]
Hao, X.D. \ Loosdrecht, M.C.M. van \ 2003
Water problems have to be solved in an integrated way, and sustainability has become a major issue. For this reason, developing more sustainable wastewater treatment processes is needed. New discoveries and good understanding on microbial conversions ...
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Model-based evaluation of temperature and inflow variations on a partial nitrification-ANAMMOX biofilm process \ Water research : the journal of the International Association on Water Quality [Artikel]
Hao, X.D. \ Heijnen, J.J. \ Loosdrecht, M.C.M. van \ 2002
A mathematical model describing nitrification (nitritification plus nitratification) and anaerobic ammonium oxidation (ANAMMOX) combined in a biofilm reactor was developed. Based on this model, a previously proposed one-reactor completely autotrophic ...
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Contribution of P-bacteria in biological nutrient removal processes to overall effects on the environment \ Water science and technology : a journal of the International Association on Water Pollution Research [Artikel]
Hao, X. \ Heijnen, J.J. \ Qian, Y. \ 2001
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