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With the development of intelligent technology, intelligent products start to come into people's sight. Wider thoughts are provided to enhance the efficiency of utilization of water resources in urban families because of the intelligent technology. Based on literature research, we regard the technology of water grading and saving as starting point and technical support. According to analysis of intelligent...
The occurrence of nineteen pharmaceutically active compounds and personal care products was followed monthly for 12 months after various stages of treatment in an advanced wastewater reclamation plant in Gwinnett County, GA, U.S.A. Twenty-four hour composite samples were collected after primary clarification, activated sludge biological treatment, membrane filtration, granular media filtration, granular...
The method of magnesium ammonium phosphate (MAP) precipitation was used to remove high concentration of ammonia-nitrogen wastewater. A lab scale study about diosgenin wastewater was conducted to optimize the reaction condition by single factor experimentation. MgCl2·6H2O and Na2HPO4·12H2O were used as precipitants. The experimental results demonstrated that the removal rate of ammonia nitrogen was...
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...
Seawater substitution is one of the effective routes to alleviate the shortage of water resources, and its high saline matter can be used in printing and dyeing industry. However, the treatment of the formed dyeing wastewater is difficult for the high salt. This paper using ultraviolet (UV) light to activate persulfate (PS), hydrogen peroxide (H2O2), Oxone (PMS) to degrade azo dye Acid orange 7 (AO7)...
A new kind of flocculants, named Polymer Silicate Phosphate Ferrous Sulfate(PSPFS), was synthesized with ferrous sulfate as main material and silicate and phosphate as additive. The influencing factors and synthesis technology of PSPFS were determined by studying the treatment of high-viscosity oil petrification wastewater of Liaohe Pertrochemical Corporation. The influencing factors level were determined,...
According to the characteristics of oil contaminated wastewater, four strains of microorganism, named TA-11, TA-17, HA-9, HD-1, which can degrade oil and CODCr of oil contaminated wastewater were picked out from the oil contaminated soil and activated sludge of Panjin pitch plant wastewater treatment system. The research results showed four strains of microorganism can all remove oil and CODCr. in...
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