The produced waste water ( PWW) at Xianhe oil production factory, Shengli, is of highTSDof 14.0—16.8 g/L and containsCODof 160—240 mg/L,BODof 115—155 mg/L, and volatile phenols (VPhs) of 0.76—1.98 mg/L and its temperature varies in range 5~32℃.
Under the conditions of 331.5 mg/L of phenols in the wastewater with pH value adjusted to 7.2, 7.5 mg/L of H 2O 2,3～8g/L of iron chips and 2 h of reaction time,the removal efficiency of phenols came up to 99.9%.
The superoxidedimutase (SOD) in the fresh Opuntia Milpa Alta juice reached 213.06 units per milliliter, the content of polysaccharide was 196mg/mL, the flavonoids concentration of juice was 0.302mg/mL,total phenolic compounds was 0.699mg/mL;
The experiment result suggests that in the optimum condition of Fenton Reagent process, the removal efficiency of COD, BOD5, NH_3-N, hydroxybenzene and chromaticity are 83.91%, 78.70%, 74.22%, 88.25% and 99.91%.
The following results were obtained. It crystallizes in the monoclinic space group P21/n. a= 1.4805 6=0.7995 c=1.5176nm β=117.9° V=1.5791nm3 Z=2 F(000)=720 R,=0.0425.The metal ion is tetra coordinated, bound to two nitrogen atoms from imine and two oxygen atoms from hydroxybenzene to form a parallelogram.
The photocatalytic degradation of phenol showed that under visible light (λ >amp;gt; 400 nm) irradiation, the chlorine-doped TiO2 calcined at 300°C displayed the best performance, the degradation ratio of phenol was 42.5% after 120 min.
Effects of inorganic acid catalysts on liquefaction of wood in phenol
It was found that lower residue ratios can be obtained under defined reaction conditions: phenol/wood ratio is 4, a 10% catalyst based on the weight of phenol, a temperature of 150°C for 2 h and phosphoric or sulfuric acid.
This study investigated the liquefaction of bamboo in phenol, which involved the effects of weight ratios of phenol to bamboo, amount of catalyst, temperature, etc.
The study showed that liquefaction could be accomplished with a phenol to bamboo weight ratio of 2-1: 1, a 5% catalyst of HCl or BF3, and a temperature of 115°C.
The chromatographic performance of new packing was evaluated by using different solute probes, such as alkylbenzenes, polycyclic hydrocarbons (PAHs), phenols, naphthalene derivatives, nitrophenol positional isomers, and sulfonamides.
The charge transfer between the dinitrobenzoyl ligand and the analytes plays a significant role in the separation of phenols and naphthalene derivatives.
Degradation of chlorinated phenols by nanoscale zero-valent iron
Composting of hydrolyzed lignin reduced the contents of lignin, low-hydrolyzable polysaccharides, resins, and low-molecularweight phenols and resulted in accumulation of humic acids.
Neutral phenols inhibit luciferase by competing with decanal, whereas a mixed mechanism of inhibition with this substrate is typical of phenoxyacetic acids.
Synthesis and application of phenolic resin internally toughened by chain extension polymer of epoxidized soybean oil
A novel epoxidized soybean oil (ESO) internally toughened phenolic resin(ESO-IT-PR) with both good toughness and excellent thermal stability was prepared as the matrix resin of copper clad laminate (CCL).
FTIR was adopted to investigate the molecular structure of modified phenolic resins and SEM was used to observe the micro morphology of their impacted intersections.
The properties of CCLs prepared with these modified phenolic resins were studied to determine the optimal process and investigate the toughening mechanism.
when the ESO content is 30% and the curing agent content is 7%, the ESO toughened phenolic resin possesses optimal performance.