The removal of trace organics by a membrane bioreactor-granular activated carbon (MBR-GAC) integrated system were investigated. The results confirmed that MBR treatment can be effective for the removal of hydrophobic (log D>3.2) and readily biodegradable trace organics. The data also highlighted the limitation of MBR in removing hydrophilic and persistent compounds (e.g. carbamazepine, diclofen...

Organic aerosols are ubiquitous in the earth's atmosphere. They have been extensively studied in urban, rural and marine environments. However, little is known about the fluorescence properties of water-soluble organic carbon (WSOC) or their transport to and distribution in the polar regions. Here, we present evidence that fluorescent WSOC is a substantial component of High Arctic aerosols. The...

Characteristic speciation of airborne volatile organics in Kaohsiung, the largest industrial city in Taiwan, is present in this paper. Hourly concentration of airborne volatile organic compounds (VOCs) was monitored by on-line GC/FID and 3 hours-averaged sample was parallel conducted by canister during rush hour. Field sampling works were conducted at a traffic station (Qian-Jin) and an industr...

In the title compound, C(35)H(30)N(4)P(2), the diphenyl-phosphanyl and diphen-yl(2-pyridyl-imino)-λ(5)-phosphanyl groups are attached to the central methyl C atom with a P-C-N angle of 114.09 (16)°. The mol-ecules stack along the b axis and inter-connect through C-H(pyrid-yl)⋯N(pyrid-yl) inter-actions, forming an infinite chain structure. The parallel chains are further inter-connected via C-H(...

The complete mol-ecule of the title compound, C(12)H(10)ClO(2)PS, is generated by crystallographic mirror symmetry, with the P, S and Cl atoms lying on the mirror plane. The resulting PO(2)SCl tetra-hedron is significantly distorted [O-P-O = 96.79 (9)°]. The crystal packing exhibits no directional inter-actions.

Comparison of two commonly used techniques for molecular weight determination of natural organics, ultrafiltration (UF) fractionation and high-performance size exclusion chromatography (SEC), shows that neither technique gives absolute measures of molecular weight. Investigations of International Humic Substances Society standard humic and fulvic acids as well as natural organic matter concentr...

The treatment of organics present in the lower reaches of a major river system (the Murray-Darling Basin, Australia) before (March-July 2010), during (December 2010-May 2011) and after (April-December 2012) a major flood period was investigated. The flood period (over 6months) occurred during an intense La Niña cycle, leading to rapid and high increases in river flows and organic loads in the r...

The environmental distribution of fluorinated organic compounds (FOCs) has been less well described than the other halogenated hydrocarbons such as chlorinated and brominated compounds. This is despite the fact that FOCs have been used in a wide variety of products and applications for more than 50 years. FOCs are resistant to hydrolysis, photolysis, microbial degradation, or metabolism by vert...