Ozonation

The combination of UVA radiation and ozone, in the presence of titanium dioxide, has been investigated as a potential destructive technology for the treatment of pesticide wastewaters. The contribution of single ozonation (O3), photolytic ozonation (O3/UV), and photocatalysis (TiO2/UV) to degradatio

Sewage and industrial effluent treatment plants are installed with primary and secondary biological treatment units to reduce the discharge of pollution load into the environment. These treatment plants normally reduce the organic load in terms of BOD but not the pollution load in terms of inorganic

A pre-industrial scale experimentation aimed at the demonstration of a system for purification and reuse of wastewater from an industrial laundry was carried out by means of a prototype plant installed in situ, fed with 15 m3/h of untreated wastewater. The tested treatment system consisted of: (i) p

Model dairy waste waters (prepared from milk powder by dilution) were treated with ozone, and the effects of the ozonation time and the surfactant concentration on the flux, the membrane resistances, membrane fouling and gel formation were measured. It was found that the microflocculation effect of

Laboratory bench-scale experiments were conducted to elucidate the effect of ozone on the microfiltration membrane fouling through reaction with particulates in the secondary effluent from BeiXiaoHe WWTP. Membrane resistance (R) was recorded during the filtration course of source water and that afte

Biodiesel can be used to reduce the emission pollution from diesel engines. The improvement of fuel properties through the use of (1% by wt) ozonated vegetable oil for neat biodiesel was evaluated. The pour point of biodiesel prepared from methanol transesterification of sunflower oil, linseed oil,

The results of laboratory tests are presented in this paper, which demonstrate a possibility of using the advanced oxidation process for the removal of cyanide from the water. A comparative analysis was carried out for the processes of ozonation, oxidation with hydrogen peroxide and advanced oxidati

A hybrid process, consisting of ozonation and membrane filtration, followed by activated carbon filtration, was studied in demonstration scale for the drinking and service water production from surface water in Thailand. The main focus of this study centred on the evaluation of the entire process, e

Textile industry is one of the most common and essential sectors in the world. On the other hand, high volume of water consumption and varying wastewater characteristics due to many products such as dyes, biocides, carriers, detergents, etc. used in the process are the factors that have caused a con

Humic substances mainly humic acids constitute the major fraction of natural organic matter in water supplies. Humics express diverse actions primarily related to the formation of potentially harmful disinfection by products (DBPs). Therefore, the removal of DBP precursors through numerous treatment