Experimental Study on Wastewater Treatment of Expressway Service Area in BAF
The removal effect of main pollutant which was in the wastewater of expressway service area was investigated in the up-flow biological aerated filter (UBAF) with different hydraulic loadings. The result showed that with the increase of hydraulic loading, the removal rates of the chemical oxygen demand (COD) and turbidity decreased. At hydraulic loading of 0.5 m3/(m2&#x2022;h), removal rates of COD and turbidity were 79.6% and 80.2% respectively, which were better than that of 56.5% and 48.7% at hydraulic loading of 1.25 m3/(m2&#x2022;h).
The Domestic Waste Water Treatment of Highway Service Area by Anaerobic Hydrolysis-ICEAS Process
An example of the process design of domestic waste water treatment engineering is described in this paper.The practical results show that the anaerobic hydrolysis-ICEAS process has good nitrogen and phosphorus removal function,which is feasible,effective and advanced.The effluent meets the requirements of discharge standard(GB 8978-1996).
PASSIVE AND LOW-ENERGY RESEARCH AND PRACTICES-DEHUMIDIFICATION
Methods of achieving acceptable indoor conditions in overheated, temperate, and underheated humid climates are discussed and compared. Desiccants and desiccant systems utilizing solid and liquid sorbents and various low-energy mechanical systems are described and evaluated.