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At present, PVC and balsa wood are usually adopted in the sandwich structure of the wind turbine blade. However, comparative research on the damage characteristics of the two materials under lightning arc was seldom reported. In this paper, firstly large current impact experiment was carried out on PVC and balsa wood to simulate the thermal effect of lightning arc, the results showed that with the...
At present, PVC and balsa wood are usually adopted in the sandwich structure of the wind turbine blade. However, comparative research on the damage characteristics of the two materials under lightning arc is seldom reported. Large current experiment was conducted on PVC and balsa wood, which indicated that under the surge current, there was a more severe reduction in the residual strength of PVC than...
In this paper, analyses were made on the variation of the absorbency, TOC, pH and acute toxicity of the simulated wastewater which contains Acid brilliant blue G in the ozonization process. The intermediate products of the dye ozonization process were detected with GC/MS analysis method. The result showed the ozonization process contains two stages, the decoloring stage and the deep degrading stage...
The photodegradation of 5-hydroxynaphthalene-1-sulphonic acid (HNSA) was investigated with the TiO2 and sulfur doped TiO2 (S/TiO2) photocatalysts under the irradiation of the ultraviolet light (UV) and the simulated solar light. The S/TiO2 photocatalyst was found to be highly effective for the HNSA photodegradation both under the UV light or the simulated solar light irradiation. Especially, using...
Abstract-The research on efficiency and mechanism of removing the odor compound 2-MIB in water is performed by adopting the O3/H2O2 technology. And in particular, the effects of addition manner, mol ratio, pH value of the solution and water quality etc, on the 2-MIB degradation are studied. And the intermediate products in the oxidative degradation of 2-MIB were analyzed by GC/MS. It is found that...
The widely use of PET (poly(ethyleneterephthalate)) results in that resource recovery of waste PET is urgent and its hydrolysis in high temperature water to produce terephthalic acid (TPA) and ethylene glycol (EG) is a very important method. Hydrothermal diamond anvil cell (HDAC) was used to in situ observe transformation of PET in water up to 240°C. The result shows that PET melts at 217°C, and then...
Di-(2-ethylhexyl) phthalate (DEHP) is one of the typical endocrine disrupting chemicals found in water and wastewater. Concentrations of DEHP in water, wastewater and reclaimed wastewater are summarized based on published literatures. Concentrations of DEHP in source water for drinking or final sewage effluents sometimes definitely exceeded legal stipulations for DEHP limits in China. Although physicochemical...
The application of high-voltage pulsed electrical discharges in bubbled water (PDBWs) for the remediation of solutions containing energetic compounds such as RDX, HMX, and TNT was investigated. Using low-energy pulses ( ~ 300 mJ/pulse), it was found that the PDBW was highly selective toward the type of energetic compound. The effects of a catalyst and of the pH value of the solution on the degradation...
The discharge in water creates chemical species such as OH radicals, ozone and hydrogen peroxide (H2O2) as well as UV and shock waves. It is promising for degradation of organic compounds and for sterilization. This article presents a corona-in-water pulse discharging system. A wire-cylinder reactor was used. The anode is a 12 cm long hollow brass tube with thin pins. Air can be bubbled into the liquid...
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