Atmospheric plasma-based approaches for the degradation
Section snippets Chemicals and reagents. Synthetic solutions of dimethyl phthalate (DMP, Sigma Aldrich - reagent grade purity ≥99%) of desired concentration, ranging between 1 × 10 4 M and 2 × 10 6 M, were prepared using tap water and Milli-Q water with initial conductivities of 480 and 4.5 μS/cm, respectively.
Process optimization and kinetic study of biodegradation
Dimethyl phthalate (DMP) with 99% purity was procured from Sigma-Aldrich Chemicals and used as a source of carbon throughout the present work. All other chemicals of analytical reagent grade were
Kinetic study of the removal of dimethyl phthalate from an
Phthalate acid esters are becoming an important class of pollutants in wastewaters. This study addresses the kinetics of removal of dimethyl phthalate (DMP) using the anion exchange resin D201-OH from an aqueous solution. The effects of various factors on the removal rate and efficiency were investigated.
identification, that is, a review of the available toxicity
TOXICITY REVIEW FOR DIMETHYL PHTHALATE (DMP, CASRN 131-11-3) Contract No. CPSC-D-06-0006 Task Order 012 Prepared by: Versar Inc. 6850 Versar Center Springfield, VA 22151 and SRC, Inc. 7502 Round Pond Road North Syracuse, NY 13212 Prepared for: Kent R. Carlson, Ph.D. U.S. Consumer Product Safety Commission 4330 East West Highway
OVERVIEW OF DIALKYL - U.S. Consumer Product Safety Commission
CPSIA plus dimethyl phthalate (DMP) and diethyl phthalate (DEP). The information in this report will be provided to the CHAP on Phthalates. The toxicity data for five phthalate substitutes has been reviewed separately (Versar and SRC 2010), and will also be provided to the CHAP.
- Can a ferrate/titanium dioxide/ultraviolet system oxidate dimethyl phthalate (DMP?
- A novel ferrate (VI)/titanium dioxide/ultraviolet [Fe (VI)/TiO 2 /UV] system was successfully established for the photocatalytic oxidation of dimethyl phthalate (DMP).
- How does DMP affect photocatalytic oxidation efficiency?
- The reduction in photocatalytic oxidation efficiency from 99.1 to 91.3% was acceptable because of DMP loss through separation and recovery and pore clogging of the catalysts caused by DMP and its by-products. These effects reduced the specific surface area of the catalysts and surface catalytic activity.
- Can dimethyl phthalate be degraded?
- Dimethyl phthalate (DMP), a representative PAEs, with a hydrolysis half-life of about 3 years is difficult to be degraded in nature (Staples et al. 1997 ).
- Who makes dimethyl terephthalate (DMT)?
- Dimethyl Terephthalate (DMT), Dimethyl Isophthalate (DMI) and Dimethyl Phthalate (DMP) were all supplied by Shanghai Aladdin-Reagent Technology Co. Ltd. (China). The mass faction purity of these three products was checked by high performance liquid chromatography (HPLC).
- Does DMP inhibit mineralization?
- Comparatively, the mineralization efficiency of DMP in actual wastewater (87.1%) was slightly lower than that in simulated water (95.2%), as presented in Fig. 7a. This inhibition effect was rationalized by considering that the natural organic matter and some ions (such as CO 32−) in actual wastewater could compete for Fe (VI) with DMP.
- Does pH affect the degradation efficiency of DMP?
- The degradation efficiency of DMP increased with TiO 2 dosage in the pH range of 7.0–11.0. Figure 1 a and b presented that pH played an important role in the photocatalytic process. In fact, the effect of pH could be wide-ranging. The relationship between pH and K 2 FeO 4 dosage was significant, as shown in Fig. 1b.
