used in the trials described in Part 1 of this paper'. The sampling and analytical work was carried out by the Water Pollution Research Laboratory (WPRL) using the same methods as in the previous trial. An additional analytical method was required in these trials, however, for the determination of trace quantities of nonionics in the influent and effluent sewage streams. The WPRL employed the t...

It has been proven that polyolefins specially low density polyethylene (LDPE), are resistant against degradation and microorganism attacks; Thus, one of the most important properties of industrial plastics, is their environmental biodegradability. Since plastics are being widely used in agriculture, horticulture and packaging, meeting this requirement becomes increasingly dificult (speciall...

cellulose sulfuric acid as a bio-polymer based solid catalyst efficiently catalyzes the selectively oxidation of sulfides to sulfoxides and thiols to disulfides using hydrogen peroxide as a green oxidant with good yields at room temperature. the developed method offers a number of advantages such as high selectivity, mild reaction conditions, simple operation, cleaner reaction profiles, low cos...