Hongyuan Liu

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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)
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)
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)
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&#x223C;10:1, MLSS was 5&#x223C;9g/L, HRT of part A was 3.93h, HRT of part O was 5.5h,(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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