نتایج جستجو برای: pulp wastewater
تعداد نتایج: 53937 فیلتر نتایج به سال:
Currently, paper consumption is globally increasing and at an unsustainable level. However, traditional production could release excessive greenhouse gas emissions or wastewater, resulting in environmental contamination. To make the result more visual persuasive, this study takes Time magazine as example to analyze impacts of papermaking process on environment. This analyzes energy from several...
چکیده ندارد.
Urban centers are unambiguously discharging wastewater in the natural streams, lakes, ponds and for irrigation in the agricultural fields. In the early stages of human civilization, wastewater discharges did not pose problem to water bodies as the nature had the capability for degradation and restoration of the quality of water to its normal condition.The key challenges towards better managemen...
The main aim of this work was to study the removal efficiency of Pb from synthetic and industrial wastewaters by using biomass fly ashes. The biomass fly ashes were produced in a biomass boiler of a pulp and paper industry. Three concentrations of Pb(2+) were tested in the synthetic wastewater (1, 10 and 1000 mg Pb/L). Moreover, two different wastewaters were collected in an industrial wastewat...
Wastewater solids could be an attractive source of secondary raw cellulose, mainly originating from toilet paper. Cellulose can recovered through sieving wastewater, return sludge, or excess sludge. In particular, a large fraction cellulose (13–15%) found in the sludge aerobic granular produced by Nereda® wastewater technology. A extraction method was developed during this study, allowing recov...
The closure of water circuits within pulp and paper mills has resulted in a higher contamination load of the final mill effluent, which must consequently be further treated in many cases to meet the standards imposed by the legislation in force. Different treatment strategies based on advanced oxidation processes (ozonation and TiO2-photocatalysis), and their combination with biological treatme...
Pulp and paper industry is one of the major sources of man-made generation of organochlorine compounds. During biological treatment of wastewater, part of organochlorine compounds is discharged with treated effluent and part is retained on biomass and disposed of as waste activated sludge. Due to presence of these compounds, the disposal of biosludge from pulp and paper industry has become an i...
The pulp and paper industry, which is a strategic economic sector in Europe, is very demanding in terms of energy and water. The high water consumption results in the generation of large volumes of wastewater, which must be treated to accomplish with regulations. Therefore, sludge is unavoidable generated and its management is a key issue for the pulp and paper industry. Given prohibitions on l...
In this work, different alternatives to conventional tertiary treatment of pulp and paper (P&P) wastewater (WW), i.e., physicochemical coagulation-flocculation, were investigated enhance the environmental economic sustainability industrial treatment. particular, following a preliminary characterization secondary effluents, cloth filtration adsorption studied, former by pilot-scale tests, wh...
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