Publications by authors named "Fangshu Ma"
Article Synopsis
- Stricter emission standards for textile printing and dyeing wastewater have led to the investigation of a novel treatment technology called hydrodynamic cavitation combined with ozone (HC + O), which effectively removes contaminants.
- In experiments, HC + O achieved removal rates of up to 91.90% for chrominance and 64.99% for UV within 60 minutes, demonstrating its efficiency at a specific pressure and ozone dosage.
- The study reveals that HC + O degrades high molecular weight organic compounds and transforms dissolved organic matter, making it a promising solution for meeting environmental standards at a cost of 8.07 USD/m.
Article Synopsis
- Azo dyes from the textile industry create toxic wastewater, prompting interest in their degradation using a combination of hydrodynamic cavitation and ozone (HC + O).
- The study focused on degrading acid red 73 (AR73) and identified optimal conditions for maximum effectiveness: an inlet pressure of 0.15 MPa, ozone dosage of 45 mg/min, a starting dye concentration of 10 mg/L, and pH 7.5.
- Results showed complete decolorization in 30 minutes, along with significant removal of UV absorbance and nitrogen content, highlighting the potential of the HC + O method for effectively treating azo dyes in wastewater.
Sulfur/dolomite and pyrite/dolomite autotrophic denitrification reactors were applied to treat the secondary effluent of wastewater treatment plant to explore the removal effect, the changes of microbial community, and recovery time of reactors after starvation period. It was shown in the results that after 30 d non-water starvation endurance, the effluent concentrations of NO-N in sulfur/dolomite and pyrite/dolomite reactors increased from 1.78 mg·L, 11.
View Article and Find Full Text PDFProlonged starvation and subsequent recovery of nitrification process in a simulated photovoltaic aeration SBR.
Environ Sci Pollut Res Int
July 2015
The ability of a new SBR (sequencing batch reactor) based on simulating photovoltaic aeration for maintaining nitrification activity under a 25-day starvation period was studied. The activity and abundance of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) and the diversity of AOB were investigated. The measured biomass decay rates were 0.
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