Pulp Mill Waste Research Articles

Treatment of Pulp and Paper Mill Waste

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTreatment of Pulp and Paper Mill WasteAugust S. Erspamer and William D. RiceCite this: Ind. Eng. Chem. 1949, 41, 8, 1806–1809Publication Date (Print):August 1, 1949Publication History Published online1 May 2002Published inissue 1 August 1949https://doi.org/10.1021/ie50476a007RIGHTS & PERMISSIONSArticle Views54Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-Alerts

Some Trends in the Commercial Fisheries of Lake of the Woods, Minnesota

Abstract Since 1884, when commercial fishing first started on Lake of the Woods, the commercial catch and the fish populations have changed markedly. Lake sturgeon (Acipenser fulvescens) which was originally the most important commercial fish is now almost extinct. The lake whitefish (Coregonus clupeaformis) has also shown a striking decline. Intensive commercial fishing was an important factor in the decline of these species. The practical disappearance of other species which were not subject to heavy fishing, the longnose sucker (Catostomus catostomus), goldeye (Amphiodon alosoides), and quillback (Carpiodes cyprinus), however, suggest some basic change in habitat. Destruction of the spawning beds in the Rainy River by pulp-mill wastes was probably the most important of these habitat changes. A correlation was found between the strength of year classes of saugers (Stizostedion canadense) and June rainfall. Recent declines in the population of yellow pikeperch (Stizostedion vitreum) do not appear to be c...

Age, Growth, Sexual Maturity, and Population Fluctuations of the Yellow Pike-Perch, Stizostedion Vitreum Vitreum (Mitchill), with Reference to the Commercial Fisheries, Lake of the Woods, Minnesota

The scale method of growth analysis is applicable to the pike-perch of Lake of the Woods, but the body-scale relationship is that of a third-degree polynomial rather than a straight line. Length calculations were made using the corrected body-scale relationship. Female pike-perch grow more rapidly than the males, but the differences in growth rate are small. Leeˈs phenomenon is pronounced and is apparently due to the selective removal of the faster growing fishes by the commercial fisheries. The growth rate is more rapid during years with high mean summer temperatures, July temperatures being most significant. The weight increases approximately as the standard length raised to the 3.1 power. Male pike-perch mature when 4 years old, but females usually do not mature until 5 or 6 years of age. Fluctuations in the abundance of pike-perch are quite pronounced. There is a suggestion of a 10-year cycle of abundance in the commercial catch. The fluctuations are associated with differences in the strength of various year classes, but the causes of these differences are not evident at present. Fry planting has no apparent effect on the strength of the year classes or the subsequent commercial catch. Depletion of pike-perch is indicated by the rapid decline in the catch from 1935 to 1939. The depletion is probably due to the destruction of spawning beds by pulp mill wastes and to an excessive drain on the fishery. It is believed that an increase in the size limit would increase the total catch and would provide a more adequate spawning stock. It is also suggested that fishing practices be changed so that saugers and perch may be removed from the lake in proportion to their abundance. At the present time the survival of these two species is favored over the survival of pike-perch.

Fatty acids from pulp mill wastes

This paper discusses the new fatty acid-containing product “Tall Oil.” which is derived from the waste liquors of the paper industry. The method of preparation, some thoughts on chemical composition, uses, and available supplies are discussed.

Pulp and Paper Mill Wastes

Pulp and Paper Mill Wastes

Pollution of Streams By Pulp-Mill Wastes

The manufacture of wood pulp is a hydro-chemical process; consequently, pulp mills are always located on streams or canals. Large volumes of water are required and the waste waters which contain th...

Paper and Pulp Mill Wastes

Paper and Pulp Mill Wastes