Hongyuan Liu

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Nitriles are common environmental pollutants, and their removal has attracted increasing attention. Microbial degradation is considered to be the most acceptable method for removal. In this work, we investigated the biodegradation of three aliphatic nitriles (acetonitrile, acrylonitrile and crotononitrile) by Rhodococcus rhodochrous BX2 and the expression(More)
The use of conventional sludge treatment processes becomes increasingly challenged with the rapid growth of wastewater quantity. Such developed theories for sludge reduction in China as uncoupling, cryptic growth and predation on micro-zoon, hold great promise to provide better sludge treatment and disposal, and thus are reviewed in this paper. The emphasis(More)
A/O-MBR was conducted to treat simulated sewage and domestic sewage in this paper, and degradation of pollutants in reactor was studied at the same time. The results showed that the process had excellent removal efficiency of pollutants, under the conditions of C/N was 8:1∼10:1, MLSS was 5∼9g/L, HRT of part A was 3.93h, HRT of part O was 5.5h,(More)
Nitrate pollution in groundwater shows a great threat to the safety of drinking water. Chemical reduction by zero-valent iron is being considered as a promising technique for nitrate removal from contaminated groundwater. In this paper, Fe0/Pd/Cu nano-composites were prepared by the liquid-phase reduction method, and batch experiments of nitrate reduction(More)
Laboratory scale experiments were conducted to compare the removal efficiency of nitrogen, phosphorus and COD<inf>cr</inf> in simulated domestic wastewater using two sequencing batch membrane bioreactors (SBMBR) operated in anaerobic aerobic (AO) and anaerobic aerobic anoxic (AOA) mode. And the changing concentrations of different stages in two modes were(More)
Biological aerated filter (BAF) is widely used in wastewater treatment plants (WWTPs) and shows potential application of micropolluted drinking water sources with a higher NH4+-N removal efficiency during short warm seasons. Here we adopted a pilot lava-based BAF setup as a pretreatment unit of drinking water treatment plant (DWTP) and achieved a great(More)
Ultrafiltration technology hold great promise to provide better water quality, especially for stringent requirements and thus the basic characteristics of ultrafiltration membrane was introduced and its advantages and disadvantages were discussed in this paper. Ultrafiltration membrane fouling mechanism, the factors affecting membrane fouling, and membrane(More)
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