The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Due to its high-temperature nature, high-temperature dyeing wastewater is a major challenge for treatment. In this paper, using the high thermal energy of high-temperature printing and dyeing wastewater to activate persulfate (PS) for dye treatment was investigated. Acid orange 7 (AO7) was chosen as a model compound. The result shows that increasing the temperature or PS concentration is beneficial...
The photocatalitic performance of the novel granule TiO2 photocatalyst G02 in an appropriately packed-bed reactor (PBR) was investigated to increase the biodegradability of dye wastewater (model compound cationic pink FG). The rate constants of the decoloration were found to be direct proportional to the UV light intensity. The FBR photocatalytic decoloration of the dye by G02 can be described by...
A combined process of aeration iron-carbon microelectrolysis(AICM)-hydrolysis acidification-anaerobic-aerobic was studied to treat pharmaceutical wastewater characterized by high nitrogen and refractory organic concentration. Results showed that when the AICM filter was controlled at the conditions of pH 3, iron-carbon ratio 1, gas-water ratio 10 and HRT 2h, the HRT of two-stage hydrolysis acidification,...
Supercritical(sub-critical) water oxidation technology is applied to degrade the explosive wastewater and low its chemical oxygen demand (COD). The technology optimum and reaction dynamics of TNT, RDX, HMX degradation have been investigated. The experiment results show that the optimum degradation technology is: reaction temperature T=648K, reaction time t=5min, the volume proportion of waste water...
Membrane-making wastewater contains DMF, with high COD, toxicity and non-biodegradability. In this work, aerobic Fe-C micro-electrolysis and three-dimensional electrodes technology were applied for the pretreatment aiming to improve the biodegradability of the wastewater. It was found that the optional pretreatment conditions were pH 3 for Fe-C micro-electrolysis and pH 5 for the three-dimensional...
The ozonizing-biological aerated filter (BAF) process was used to treat the port chemical cabin washing wastewater . According to the characteristics of port chemical cabin washing wastewater with high CODcr, variable quality and complicated composition, the initial pH, the dosage of ozone and catalyzer, the bio-degrade ability of the wastewater, and effect of the hydraulic retention time (HRT) of...
Three kinds of electrochemical methods, electro-flocculation, indirect electro-oxidation and electro-Fenton were examined as pre-treatment processes for fresh dyestuff wastewater with high salinity and non-biodegradable organic concentration. The efficiency of each technique was evaluated according to the reduction levels of COD and toxicity, as well as biodegradability improvement. The results indicate...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.