scholarly journals Separation of cellulose from industrial paper mill wastewater dried sludge using a commercial and cheap ionic liquid

2019 ◽  
Vol 79 (10) ◽  
pp. 1897-1904 ◽  
Author(s):  
Katarzyna Glińska ◽  
Mohammed Aqlan ◽  
Jaume Giralt ◽  
Esther Torrens ◽  
Agusti Fortuny ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Paper Industry ◽  
Research Work ◽  
Paper Mill ◽  
Environmental Concerns ◽  
Operation Conditions ◽  
Volatile Solvents ◽  
Dried Sludge ◽  
Paper Mill Wastewater ◽  
The Impact

Abstract Industrial wastewaters and their treatment are now placed at the heart of the environmental concerns that industries face. Some research work has been carried out in order to limit the impact of these wastes on the environment as well as their costs. In this study, wastewater dehydrated sludge (55% wt. water content) from the paper industry was used to recover cellulose by using tetrakis(hydroxymethyl)phosphonium chloride, [P(CH2OH)4]Cl, ionic liquid as a solvent. The ionic liquid has shown remarkable results in terms of cellulose extraction in addition to its non-volatility and lower toxicity compared to organic volatile solvents. All cellulose, based on dry sludge, was recovered from the industrial dehydrated sludge with better operation conditions. The influence of temperature and the quantity of ionic liquid was preliminary studied in order to optimise the extraction conditions.

scholarly journals North European Export Industry and the Shadows of Sulphur Directive

2016 ◽  
Vol 17 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Esa Hämäläinen ◽  
Olli-Pekka Hilmola ◽  
Andres Tolli
Keyword(s):  
Paper Industry ◽  
Research Work ◽  
Transportation Cost ◽  
Paper Mill ◽  
Export Industry ◽  
Eu Directive ◽  
Oil Markets ◽  
Regulation Change ◽  
European Export

Abstract EU Directive of MARPOL Annex VI and its economic impact on the Nordic paper industry is theme of this research work. Empirical data for analysis purposes was gained from a large Nordic paper mill that exports bulk products mainly to Europe (70 % of its volume). The study shows that in the end the industry’s location still has an economical effect, and that the location has a distinct impact on competition through rising transportation costs. Environmental regulation continues and fosters long-term upwards trajectory of transportation cost, which has been experienced by the paper mill earlier during years 2001-2009. Sulphur regulation change to cleaner grades of maritime diesel did not turn as heavy cost increase in the 2015, however, possibility to gain cost benefits in rapidly deteriorating oil markets were not reached either. Therefore, in depressed industrial product markets, like paper industry, implications were such that margins of export industry remained low.

scholarly journals Analisis Dampak Sosial Akibat Pabrik Kertas Di Desa Parmaksian Tobasa Menggunakan Paradigma Ekofeminis

2021 ◽  
Vol 19 (1) ◽  
pp. 53-70
Author(s):  
Ayu Indira Hasugian
Keyword(s):  
Social Impact ◽  
Negative Impact ◽  
Paper Industry ◽  
Paper Mill ◽  
Social Impacts ◽  
The Body ◽  
The Social ◽  
The World ◽  
The Impact

AbstrakDesa Siruar Parmaksian Tobasa di salah satu desa yang berada di daerah Toba mengalami perubahan sosial akibat dampak negatif berdirinya PT TPL. Dampak yang diberikan mengarah kepada kaum perempuan/ibu sehingga mengakibatkan aktivitas sehari-hari perempuan/ibu menjadi terkendala. Dampak ini terjadi di setiap harinya, sehingga akan sangat berdampak buruk bagi hubungan antara perempuan dan alam. Melihat kasus tersebut peneliti ingin melakukan penelitian terhadap kondisi  yang dialami kaum perempuan/ibu tersebut. Tujuan penelitian ini untuk menganalisa dampak sosial akibat pabrik kertas di Desa Siruar Parmaksian Tobasa kepada para perempuan dengan menggunakan paradigma Ekofeminis yang di tawarkan oleh McFague dan Warren, dan dikaji dalam bentuk studi kasus. Metode penelitian yang peneliti pakai adalah Metode Studi Kasus dari Teori E.P Gintings. Ada beberapa isu yang muncul dari kasus atau masalah ini, diantaranya : dampak sosial, dampak kerusakan alam terhadap kehidupan para perempuan, dan paradigma baru relasi perempuan dan alam atau rekonstruksi paradigma. Hal ini dilakukan untuk mengetahui Bagaimana dampak sosial akibat pabrik kertas terhadap masyarakat yang berada di lingkungan  Industri Kertas di Desa Siruar Parmaksian Tobasa yang mengarah kepada perempuan yang terdampak dan Bagaimana upaya-upaya yang dilakukan kaum perempuan/ibu di desa siruar untuk mempertahankan tanah/wilayahnya yang telah di rusak oleh perusahaan tersebut?. Hasil Analisis menunjukkan bahwa  paradigma Ekofeminis sudah menerapkan paradigma dengan istilah “Konstruksionisme”, yang disebut dengan istilah metafora dunia sebagai tubuh Allah, artinya dunia harus dipahami sebagai satu kesatuan organik, tubuh Tuhan dan bisa menanamkan sikap yang menghargai dunia.Kata Kunci: dampak sosial, paradigma ekofeminis AbstractThe village of Siruar Parm testimony Tobasa in a village in the Toba area experienced social changes due to the negative impact of the establishment of PT TPL. The impact that is given is directed at women / mothers so that it causes the daily activities of women / mothers to be constrained. This impact occurs every day, so it will have a very bad impact on the relationship between women and nature. Seeing this case, the researchers wanted to conduct research on the conditions experienced by these women / mothers. The purpose of this study is to analyze the social impacts of the paper mill in Siruar Parm testimony Tobasa on women using the Ecofemist paradigm offered by McFague and Warren, and study it in the form of a case study. The research method that researchers use is the Case Study Method of E.P Gintings Theory. There are several issues that arise from this case or problem, including: social impacts, the impact of natural destruction on women's lives, and a new paradigm of relations between women and nature or paradigm reconstruction. This is done to find out how the social impact of the paper mill on the community living in the Paper Industry in Siruar Parm testimony Tobasa Village which leads to affected women and how the efforts made by women / mothers in Siruar Village to defend their has been damaged by the company ?. The results of the analysis show that the Ecofemist paradigm has applied a paradigm with the term "Constructionism", which is called the metaphor of the world as the body of God, meaning that the world must be understood as an organic unit, the body of God and can instill an attitude of respect for the world. Keywords: social impact, eco-feminist paradigm

Paper mill's distribution efficiency to emerging East European markets

2014 ◽  
Vol 114 (8) ◽  
pp. 1144-1168 ◽  
Author(s):  
Olli-Pekka Hilmola ◽  
Esa Hämäläinen ◽  
Maija Hujala
Keyword(s):  
Paper Industry ◽  
Research Work ◽  
Transportation Cost ◽  
Paper Mill ◽  
Transportation Costs ◽  
General Distribution ◽  
Content Type ◽  
East European ◽  
European Markets ◽  
Distribution Efficiency

Purpose – European paper industry has been struggling with margins and profitability for more than decade time period. At typical in markets of west, paper product demand is at long-term decline, mostly driven by continuously increasing internet use. However, in emerging markets demand still exists, and in Europe numerous small markets in east have even some growth available. The paper aims to discuss these issues. Design/methodology/approach – The authors analyse in this research work with longitudinal data (period of 2002-2009) from one large Finnish paper mill and data envelopment analysis (DEA) approach, how distribution efficiency to selected eight East European markets has evolved. Findings – In general distribution efficiency has improved, but this has taken place in step-wise manner rather than being linear year-to-year development (year 2006 found to be the threshold). Reason is mostly in better management of transportation costs, and in particular lower monthly deviation of these costs. It is surprising that case paper mill has been able to manage transportation costs in rapidly increasing energy cost environment so efficiently. Maybe European Union enlargement of 2004 and 2007 has had its effects on distribution efficiency. Research limitations/implications – The research is limited to the deliveries of one paper mill located in Finland. Also East European markets in the early periods of this study were emerging papers markets, and distribution practices were clearly evolving. Practical implications – Based on the study East European paper market distribution should give more attention on transportation cost control, and trying to find solutions to minimize it with low monthly fluctuation. Originality/value – Very few studies exist from East European distribution issues, and particularly that of paper industry. Also used quantitative method of DEA is relatively new in this context and gives valuable insights for the distribution efficiency development.

Evaluation of an Aerator Control Strategy Utilizing Time Varying Mathematical Model Simulations

1986 ◽  
Vol 18 (6) ◽  
pp. 189-201 ◽  
Author(s):  
D. A. Barton ◽  
J. J. McKeown
Keyword(s):  
Mathematical Model ◽  
Loading Rate ◽  
Paper Industry ◽  
Paper Mill ◽  
Organic Loading Rate ◽  
Variable Model ◽  
Effluent Quality ◽  
Control Scheme ◽  
Paper Mill Wastewater ◽  
Reduction Percentage

A mechanistic mathematical model of the aerated stabilization basin process utilized in the pulp and paper industry is presented. The time variable model is calibrated for a paper mill wastewater treatment system and is used to develop and test a control scheme for the optimization of aeration intensity. The control scheme is shown to reduce aerator usage on an annual basis by seventeen to thirty percent compared to the case of no control. The aerator usage reduction percentage was found to be inversely related to the organic loading rate per aerator horsepower. Savings in aerator usage under the control scheme were equivalent to the existing practice of seasonal aeration control. However, modest improvements in effluent quality variability were observed under the control scheme.

Pulp and paper industry wastewater treatment: use of microbes and their enzymes

2020 ◽  
Vol 5 (10) ◽  
Author(s):  
Chhotu Ram ◽  
Pushpa Rani ◽  
Kibrom Alebel Gebru ◽  
Mebrhit G Mariam Abrha
Keyword(s):  
Chemical Constituents ◽  
Paper Industry ◽  
Oxygen Demand ◽  
Cost Effective ◽  
Paper Mill ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Complex Nature ◽  
Paper Mill Effluents ◽  
Paper Mill Wastewater

AbstractPulp and paper industry is coming under one of the most water polluting industries, and generated wastewater is highly toxic in nature. The paper mill requires huge quantity (~50–60 m3 of water to produce one ton of paper) of water, and accordingly huge quantity of chemical contaminated wastewater is discharged. The paper mill effluents have identified 240–250 chemicals in different stages of paper making. Various chemical constituents such as high chemical oxygen demand, biochemical oxygen demand, AOX, chlorinated compounds, color, suspended materials, lignin and their derivatives are released in the wastewater. The present review study is focused on the paper mill processes, wastewater generation and its effective treatment by microorganisms. The biological treatment has been identified as cost-effective and eco-friendly methods for the degradation of xenobiotic compounds for paper mill wastewater. Various studies have been performed so far to investigate the complex nature of wastewater by the application of bacteria, fungi and their enzymes at industrial scale. Therefore, the article discussed the importance of biological method as an effective technique for the degradation of paper mill wastewater.

Potential of a tropical subsurface constructed wetland to remove phenol from pre-treated pulp and papermill wastewater

2005 ◽  
Vol 51 (9) ◽  
pp. 173-176 ◽  
Author(s):  
M.A. Abira ◽  
J.J.A. van Bruggen ◽  
P. Denny
Keyword(s):  
Constructed Wetland ◽  
Retention Time ◽  
Experimental Period ◽  
Paper Mill ◽  
Pilot Project ◽  
Nutrient Deficiencies ◽  
Pulp And Paper Mill ◽  
National Guidelines ◽  
Paper Mill Wastewater ◽  
The Impact

The capacity of a pilot project subsurface flow constructed wetland in the tropics to remove phenol from pre-treated pulp and paper mill wastewater was studied under varying hydraulic retention times (HRT) with batch loading. Initial 15 months results indicate that removal efficiencies for phenol were variable but on average reached 60% at 5-day HRT and 77% at 3-day HRT. It was thought that the longer retention time might have caused oxygen and nutrient deficiencies, which may have reduced removal performance. Although phenol was sometimes not detectable in the wetland outflow, on average values over the experimental period did not meet set national guidelines. In the ongoing study, the impact of varying hydraulic retention time and/or loading rate on the removal of phenols will be evaluated and the main removal process established.

scholarly journals Aspergillus oryzae Grown on Rice Hulls Used as an Additive for Pretreatment of Starch-Containing Wastewater from the Pulp and Paper Industry

Fermentation ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 317
Author(s):  
Stefania Costa ◽  
Daniela Summa ◽  
Federico Zappaterra ◽  
Riccardo Blo ◽  
Elena Tamburini
Keyword(s):  
Aspergillus Oryzae ◽  
Reducing Sugars ◽  
Amylase Activity ◽  
Paper Industry ◽  
Paper Mill ◽  
Point Of View ◽  
Rice Hulls ◽  
Wastewater Bioremediation ◽  
Paper Mill Wastewater ◽  
Fermentation Technology

From an industrial point of view, the use of microorganisms as a wastewater bioremediation practice represents a sustainable and economic alternative for conventional treatments. In this work, we investigated the starch bioremediation of paper mill wastewater (PMW) with Aspergillus oryzae. This amylase-producing fungus was tested in submerged fermentation technology (SmF) and solid-state fermentation (SSF) on rice hulls. The tests were conducted to assay the concentration of the reducing sugars on paper mill wastewater. The bioremediation of starch in the wastewater was carried out by A. oryzae, which proved capable of growing in this complex media as well as expressing its amylase activity.

The Use of Coagulation-UV Irradiation/H2O2 and Electrocoagulation Methods on Pulp and Paper Mill Wastewater Treatment

2018 ◽  
Vol 280 ◽  
pp. 393-398 ◽  
Author(s):  
G. Yuliani ◽  
R. Agustiningsih ◽  
H. S. Halimatul Munawaroh ◽  
N. F. Rahmi
Keyword(s):  
Wastewater Treatment ◽  
Uv Irradiation ◽  
Irradiation Time ◽  
Paper Industry ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Pulp And Paper Mill ◽  
Nacl Concentration ◽  
Paper Mill Wastewater ◽  
Physical And Chemical

Effluents from pulp and paper mill typically consist of high loading of inorganics compounds (e.g., Na2CO3, Na2S, NaOH and NaCl) and organics compounds (e.g., lignin and polysaccharides fragments, alcohols, carboxylic acids) Several methods, such as biological, physical and chemical treatment, have been reported to degrade these molecules. However, coagulation is by far the cheapest, simplest and most common method employed for secondary wastewater treatment to reduce colour and organics. In this research, two most widely used methods were employed to treat a model wastewater of pulp and paper industry, namely a combination of coagulation-flocculation-UV irradiation/H2O2 and electrocoagulation (EC). In the application of coagulation-flocculation-UV irradiation/H2O2 method, the decrease in colour (measured as absorbance at 500 nm) was 71%, and the COD removal was measured to be 38% under the optimum conditions of pH 8, coagulant dose of 700 ppm, flocculant dose of 60 ppm, 130 rpm of coagulant stirring rate, 1 day irradiation time, and 25 mM of H2O2. For the EC method, 91% reduction of color and 84% reduction of COD were achieved at 40 min of electrolysis time, pH of 8, 600 ppm of NaCl concentration, electrode distance of 1.5 cm and 2 V of voltage. The EC method may serve as an efficient method for color and organics removals from pulp and paper mill wastewater.

Piezoelectric β-polymorph formation of new textiles by surface modification with coating process based on interfacial interaction on the conformational variation of poly (vinylidene fluoride) (PVDF) chains

2020 ◽  
Vol 91 (3) ◽  
pp. 31301
Author(s):  
Nabil Chakhchaoui ◽  
Rida Farhan ◽  
Meriem Boutaldat ◽  
Marwane Rouway ◽  
Adil Eddiai ◽  
...  
Keyword(s):  
High Efficiency ◽  
Vinylidene Fluoride ◽  
Research Work ◽  
Research Area ◽  
Interfacial Interaction ◽  
Tetraethyl Orthosilicate ◽  
Poly Vinylidene Fluoride ◽  
Carbon Nanofillers ◽  
The Impact ◽  
Advanced Applications

Novel textiles have received a lot of attention from researchers in the last decade due to some of their unique features. The introduction of intelligent materials into textile structures offers an opportunity to develop multifunctional textiles, such as sensing, reacting, conducting electricity and performing energy conversion operations. In this research work nanocomposite-based highly piezoelectric and electroactive β-phase new textile has been developed using the pad-dry-cure method. The deposition of poly (vinylidene fluoride) (PVDF) − carbon nanofillers (CNF) − tetraethyl orthosilicate (TEOS), Si(OCH2CH3)4 was acquired on a treated textile substrate using coating technique followed by evaporation to transform the passive (non-functional) textile into a dynamic textile with an enhanced piezoelectric β-phase. The aim of the study is the investigation of the impact the coating of textile via piezoelectric nanocomposites based PVDF-CNF (by optimizing piezoelectric crystalline phase). The chemical composition of CT/PVDF-CNC-TEOS textile was detected by qualitative elemental analysis (SEM/EDX). The added of 0.5% of CNF during the process provides material textiles with a piezoelectric β-phase of up to 50% has been measured by FTIR experiments. These results indicated that CNF has high efficiency in transforming the phase α introduced in the unloaded PVDF, to the β-phase in the case of nanocomposites. Consequently, this fabricated new textile exhibits glorious piezoelectric β-phase even with relatively low coating content of PVDF-CNF-TEOS. The study demonstrates that the pad-dry-cure method can potentially be used for the development of piezoelectric nanocomposite-coated wearable new textiles for sensors and energy harvesting applications. We believe that our study may inspire the research area for future advanced applications.

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