The influence of residual black liquor in pulp on wastewater pollution after the bleaching process was studied. The results show that the CODCr in bleaching effluent has a remarkable linearity with bleaching loss of pulps without residual black liquor. For pulps with some residual black liquor, more than 34% of the overall CODCr is produced by the residual black liquor. It follows that more eff...

In humans, sulfite is generated endogenously by the metabolism of sulfur containing amino acids such as methionine and cysteine. Sulfite is also formed from exposure to sulfur dioxide, one of the major environmental pollutants. Sulfite is used as an antioxidant and preservative in dried fruits, vegetables, and beverages such as wine. Sulfite is also used as a stabilizer in many drugs. Sulfite t...

We have previously documented the presence of progesterone and androstenedione in the water column and bottom sediments of the Fenholloway River, Taylor County, Florida. This river receives paper mill effluent and contains masculinized female mosquitofish. We hypothesized that plant sterols (e.g., ss-sitosterol) derived from the pulping of pine trees are transformed by bacteria into progesteron...

Heikki Särkkä Electro-Oxidation Treatment of Pulp and Paper Mill Circulating Waters and Wastewaters Lappeenranta 2013 p. 96 Acta Universitatis Lappeenrantaensis 524 Diss. Lappeenrannan teknillinen yliopisto ISBN 978-952-265-431-1, ISBN 978-952-265-432-8 (PDF), ISSN-L 1456-4491, ISSN 1456-4491 Interest in water treatment by electrochemical methods has grown in recent years. Electrochemical oxida...

Olive mill wastewater (OMW) was exposed to Fenton treatment and subjected to post Fenton coagulation/flocculation using lime. Several tests were performed for different R = H2O2/COD ratios, from 0.25 to 3.0, promoting the gradual addition of H2O2 and Fe2+, with the original condition of a pH = 3.5 and maintaining a constant relationship H2O2/Fe2+ = 15. A maximum reduction of COD of 96.8% was ob...

Palm oil mill effluent (POME) is a wastewater generated from palm industries that rich with organic and nutrients which can becomes an excellent substrate for biogas production. A comprehensive study was carried out to the effect of different ratio inoculum POME In addition, removal efficiencies biochemical oxygen demand (BOD), chemical (COD), ammoniacal nitrogen (AN), total (TN) suspended soli...