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paper mill

Mikko Mäkelä, Julia Forsberg, Christer Söderberg, Sylvia H Larsson, Olli Dahl
Hydrothermal carbonization (HTC) can be used to break down sludge structure and generate carbonaceous hydrochar suitable for solid fuel or value-added material applications. The separation of char and the reaction medium however generates a filtrate, which needs to treated before potential discharge. Thus, this work determined filtrate properties based on HTC temperature and sludge moisture content and estimated the discharge emissions and the potential increase in analyte loads to an industrial wastewater treatment plant based on derived regression models...
May 15, 2018: Bioresource Technology
Amanda Waleh Åström, Marina Heiden, Svend Erik Mathiassen, Annika Strömberg
OBJECTIVE: To assess uncertainty in cost estimates for collecting posture data by inclinometry, observations and self-report. METHOD: In a study addressing physical workloads at a paper mill, costs were calculated for measuring postures of twenty-eight workers during three shifts. Uncertainty in costs was assessed for all three methods as the range between an assumed best case (lowest cost) and worst case (highest cost) using scenario analysis. RESULTS: The cost for observation was larger, but also more uncertain (€16506 and €89552 in the best and worst case, respectively) than that of inclinometry (€7613 - €45896)...
September 2018: Applied Ergonomics
John N Christensen, Baptiste Dafflon, Alyssa E Shiel, Tetsu K Tokunaga, Jiamin Wan, Boris Faybishenko, Wenming Dong, Kenneth H Williams, Chad Hobson, Shaun T Brown, Susan S Hubbard
Recharge of alluvial aquifers is a key component in understanding the interaction between floodplain vadose zone biogeochemistry and groundwater quality. The Rifle Site (a former U-mill tailings site) adjacent to the Colorado River is a well-established field laboratory that has been used for over a decade for the study of biogeochemical processes in the vadose zone and aquifer. This site is considered an exemplar of both a riparian floodplain in a semiarid region and a post-remediation U-tailings site. In this paper we present Sr isotopic data for groundwater and vadose zone porewater samples collected in May and July 2013 to build a mixing model for the fractional contribution of vadose zone porewater (i...
May 11, 2018: Science of the Total Environment
Ayodeji A Olabiyi, Fabiano B Carvalho, Nathieli B Bottari, Vera M Morsch, Ademir F Morel, Ganiyu Oboh, Maria Rosa Schetinger
BACKGROUND: Tiger nut (Cyperus esculentus L.) and walnut (Tetracarpidium conophorum Müll. Arg.) have been reportedly used in the treatment of inflammatory diseases such as atherosclerosis, prevent heart attack and improve blood circulation, reduce serum cholesterol level as well as inhibit oxidation reactions. PURPOSE: This study investigated the effect of tiger nut and walnut hydro-alcoholic extracts on extracellular metabolism of ATP through the NOS/cGMP/PKG signaling pathway induced by Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME) in kidney slices...
April 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Qing Teng Qian, Cheng Wei Li, Meng Zhao, Shu Bo Fang
Pb stable isotope signatures analysis can be used to identify its sources precisely and the spatial transportation process to achieve precise management of target areas. In this study, 12 surface (0-10 cm) soil samples (3-5 replications for each site) were collected on the Yancheng coast. Pb isotopes (206 Pb, 207 Pb and 208 Pb) and Pb contents were analyzed by inductively coupled plasma mass spectrometry. Results showed that the soil Pb contents were as high as 1.7 times of the background Pb content value. Referencing the national criteria of GB 15618-2008, the study area was polluted by Pb to a relatively serious extent...
July 18, 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Soumia Boulaadjoul, Hassiba Zemmouri, Zoubida Bendjama, Nadjib Drouiche
In this study, Moringa oleifera (M. oleifera) performance as an eco-friendly coagulant in the enhanced primary treatment of paper mill effluent was investigated. Its performance in terms of turbidity removal and COD abatement was examined. Local M. oleifera seed powder from ADRAR-city, South of Algeria, was used. Conventional jar tests were conducted for enhancing the primary treatment of paper mill effluent from paper factory. For this reason, comparative coagulation tests were performed using aluminum sulfate (alum)...
May 2, 2018: Chemosphere
M Schmitz, M Joannidis, D Czock, S John, A Jörres, S J Klein, M Oppert, V Schwenger, J Kielstein, A Zarbock, D Kindgen-Milles, C Willam
BACKGROUND: Regional citrate anticoagulation (RCA) in continuous renal replacement therapy can effectively anticoagulate dialysis circuits without having adverse effects on systemic heparin application. In particular, in continuous renal replacement therapy RCA is well established and represents a safe procedure with longer filter lifetimes and fewer bleeding complications. OBJECTIVES: To provide guidance on the indications, advantages and disadvantages, and use of RCA, current recommendations from the renal section of the DGIIN (Deutschen Gesellschaft für Internistische Intensivmedizin und Notfallmedizin), ÖGIAIN (Österreichischen Gesellschaft für Internistische und Allgemeine Intensivmedizin und Notfallmedizin) and DIVI (Deutschen Interdisziplinären Vereinigung für Intensiv- und Notfallmedizin) are stated...
May 8, 2018: Medizinische Klinik, Intensivmedizin und Notfallmedizin
Dominika B Matuszek, Krystian Wojtkiewicz
Background: This paper describes the use of fluorescence induced by UV radiation to evaluate the share of tracer in feed mixture. Methods: For the purpose of this study, three substances were used. They are as follows: Tinopal, Rhodamine B, and Uranine. Tracer in the form of maize or kardi was added to chicken feed before the mixing process. Grains used in the process were grinded in the mill sieve with a mesh size of 4 and 6 mm. The drawn samples of the mixture were illuminated with UV radiation to make grain tracer light, and then the photo was taken with a digital camera...
May 3, 2018: Journal of AOAC International
Björn Magnusson, Eva-Maria Ekstrand, Anna Karlsson, Jörgen Ejlertsson
The activated sludge process within the pulp and paper industry is generally run to minimize the production of waste activated sludge (WAS), leading to high electricity costs from aeration and relatively large basin volumes. In this study, a pilot-scale activated sludge process was run to evaluate the concept of treating the wastewater at high rate with a low sludge age. Two 150 L containers were used, one for aeration and one for sedimentation and sludge return. The hydraulic retention time was decreased from 24 hours to 7 hours, and the sludge age was lowered from 12 days to 2-4 days...
May 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
S M Londoño-Restrepo, R Jeronimo-Cruz, E Rubio-Rosas, M E Rodriguez-García
This paper focus on physicochemical changes in bio-hydroxyapatite (BIO-HAp) from bovine femur obtained by calcination at high temperatures: 520-620 (each 20 °C) at 7.4 °C/min and from 700 to 1100 °C (each 100 °C) at three heating rates: 7.4, 9.9, and 11.1 °C/min. BIO-HAp samples were obtained using a multi-step process: cleaning, milling, hydrothermal process, calcination in an air atmosphere, and cooling in furnace air. Inductively Couple Plasma (ICP) showed that the presence of Mg, K, S, Ba, Zn, and Na, is not affected by the annealing temperature and heating rate...
May 2, 2018: Journal of Materials Science. Materials in Medicine
Carmine Summo, Marino Palasciano, Davide De Angelis, Vito M Paradiso, Francesco Caponio, Antonella Pasqualone
BACKGROUND: Several authors studied the effect of harvest time on chemical and nutritional composition of almonds, but the results are partly conflicting, probably due to differences in the cultivars considered and to different agronomic and climatic conditions in the growing areas. In this paper the influence of harvest time and cultivar on the chemical and nutritional composition of almonds (Prunus dulcis (Mill). D.A. Webb) was evaluated. Ten cultivars were considered, grown in the same orchard and subjected to the same agronomical regime...
April 30, 2018: Journal of the Science of Food and Agriculture
Katherine L Mills, Christina Marel, Shane Darke, Joanne Ross, Tim Slade, Maree Teesson
The high prevalence of post traumatic stress disorder (PTSD) among people with heroin dependence and its impact on short term outcomes has been well established. The impact of PTSD on long-term recovery is, however, unknown. This paper examines the impact of current and lifetime PTSD on long-term recovery from heroin dependence among participants who took part in the 11-year follow-up of the Australian Treatment Outcome Study (ATOS), a prospective naturalistic longitudinal study of 615 people with heroin dependence recruited from Sydney, Australia, in 2001-2002...
June 2018: Journal of Substance Abuse Treatment
Nayara Vilela Avelar, Benício Costa Ribeiro, Ana Augusta Passos Rezende, Cláudio Mudadu Silva, Angélica de Cássia Oliveira Carneiro, Márcio Arêdes Martins
This study investigated an industrial biosludge drying system using hot gases from a coal furnace, seeking to increase the solids content of the biosludge above 50% (w.b.), considered suitable for combustion in biomass boilers. Biosludge was collected from a paper mill activated sludge plant. Biosludge mixtures with eucalyptus chips and eucalyptus bark in two different proportions (15% and 25%), were placed into a drying chamber. Hot gases generated by the furnace, with a flowrate of 0.64 ± 0.02 m3 .s-1 at 100 ± 20°C, were applied to the piles through a blowing system...
April 27, 2018: Environmental Technology
Madeleine J Murtagh, Mwenza T Blell, Olly W Butters, Lorraine Cowley, Edward S Dove, Alissa Goodman, Rebecca L Griggs, Alison Hall, Nina Hallowell, Meena Kumari, Massimo Mangino, Barbara Maughan, Melinda C Mills, Joel T Minion, Tom Murphy, Gillian Prior, Matthew Suderman, Susan M Ring, Nina T Rogers, Stephanie J Roberts, Catherine Van der Straeten, Will Viney, Deborah Wiltshire, Andrew Wong, Neil Walker, Paul R Burton
BACKGROUND: Genomic and biosocial research data about individuals is rapidly proliferating, bringing the potential for novel opportunities for data integration and use. The scale, pace and novelty of these applications raise a number of urgent sociotechnical, ethical and legal questions, including optimal methods of data storage, management and access. Although the open science movement advocates unfettered access to research data, many of the UK's longitudinal cohort studies operate systems of managed data access, in which access is governed by legal and ethical agreements between stewards of research datasets and researchers wishing to make use of them...
April 26, 2018: Human Genomics
Takayuki Niizato, Hisashi Murakami
Collective behaviors that seem highly ordered and result in collective alignment, such as schooling by fish and flocking by birds, arise from seamless shuffling (such as super-diffusion) and bustling inside groups (such as Lévy walks). However, such noisy behavior inside groups appears to preclude the collective behavior: intuitively, we expect that noisy behavior would lead to the group being destabilized and broken into small sub groups, and high alignment seems to preclude shuffling of neighbors. Although statistical modeling approaches with extrinsic noise, such as the maximum entropy approach, have provided some reasonable descriptions, they ignore the cognitive perspective of the individuals...
2018: PloS One
Desika Prabakar, Subha Suvetha K, Varshini T Manimudi, Thangavel Mathimani, Gopalakrishnan Kumar, Eldon R Rene, Arivalagan Pugazhendhi
The implementation of different pretreatment techniques and technologies prior to effluent discharge is a direct result of the inefficiency of several existing wastewater treatment methods. A majority of the industrial sectors have known to cause severe negative effects on the environment. The five major polluting industries are the paper and pulp mills, coal manufacturing facilities, petrochemical, textile and the pharmaceutical sectors. Pretreatment methods have been widely used in order to lower the toxicity levels of effluents and comply with environmental standards...
April 18, 2018: Journal of Environmental Management
Suan Shi, Jing Li, David M Blersch
The aim of this work was to study the solid waste (manure) produced by catfish as a potential feedstock for the production of lactic acid (LA) via fermentation. The solid waste contains high levels of both carbohydrates and nutrients that are sufficient for LA bacteria. Simultaneous saccharification and co-fermentation (SSCF) was applied using enzyme and Lactobacillus pentosus, and different loadings of enzyme and solid waste were tested. Results showed LA concentrations of 35.7 g/L were obtained at 15% solids content of catfish waste...
April 19, 2018: Applied Microbiology and Biotechnology
Gabriel Buftia, Emilio Rosales, Marta Pazos, Gabriel Lazar, María Angeles Sanromán
In this work, an eco-friendly solution for the remediation of wastewater generated in the lignin recovery process from eco-industrial paper mill has been proposed in their way towards a more circular economy strategy. Thus, the application of the electro-Fenton process for the degradation of the non-recovered lignin and other organic compounds form a scarcely studied acid black liquor waste (ABLW) was successfully performed. This treatment was able to operate in a range of COD loads (0.5-19.5mgO2 ·L-1 ) showing high degradation values of the ABLW determined by the abatement of color, total phenolic content and COD...
April 16, 2018: Science of the Total Environment
Allan Lieberman, Luke Curtis
In this case report, we describe a 66-year-old man who developed multiple adverse reactions beginning at age 56 after exposure to several azole antifungal drugs including ketoconazole and fluconazole. He also had a history of more than 40 years exposure to chemicals including pesticides, wood preservatives, fertilizers, and welding chemicals. His reactions involved dehydration (requiring several liters of intravenous fluids in less than an hour to alleviate this condition), angioedema, nausea, tinnitus, hypotension, and difficulty breathing...
April 18, 2018: Drug Safety—Case Reports
Aung Zaw Zaw Phyo, Thibaut Demaneuf, Alysha M De Livera, George A Jelinek, Chelsea R Brown, Claudia H Marck, Sandra L Neate, Keryn L Taylor, Taylor Mills, Emily O'Kearney, Amalia Karahalios, Tracey J Weiland
Background: Multiple sclerosis (MS) is a complex, demyelinating disease of the central nervous system. Fatigue is commonly reported by people with MS (PwMS). MS-related fatigue severely affects daily activities, employment, socioeconomic status, and quality of life. Objective: We conducted this systematic review and meta-analysis to determine whether psychological interventions are effective in managing fatigue in PwMS. Data sources: We performed systematic searches of Medline, EMBASE, PsycINFO, and CINAHL to identify relevant articles published from database inception to April 5, 2017...
2018: Frontiers in Neurology
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