A study on pulping of rice straw and impact of incorporation of chlorine dioxide during bleaching on pulp properties and effluents characteristics

Kaur, Daljeet; Bhardwaj, Nishi Kant; Lohchab, Rajesh Kumar

doi:10.1016/j.jclepro.2017.09.111

Cited by 80 publications

(30 citation statements)

References 26 publications

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“…On the other hand, AQ has the role of an effective stabilizer in both wood and non-wood polysaccharides. AQ is effective at extremely lower dosage levels of 0.05-0.1% on oven-dry wood, giving good results in most cases [43].…”

Section: Effect Of Anthraquinone (Aq) Additionmentioning

confidence: 97%

Alkaline Sulfite Anthraquinone and Methanol (ASAM) Pulping Process of Tropical Bamboo (Gigantochloa scortechinii)

Paridah¹,

Moradbak²,

Mohamed³

et al. 2018

Bamboo - Current and Future Prospects

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This chapter explores the characteristic potentials of alkaline sulfite anthraquinone and methanol (ASAM) pulping of bamboo culms (Gigantochloa scortechinii) in the industrial production of pulp and paper for packaging. The biometric characterization results of the bamboo culms show that bamboo has fiber length of 1980-4000 μm, Runkel ratio of 0.86, and flexibility ratio of 50.19, while the chemical compositions of the bamboo contain 47.67% cellulose, 68.33% holocellulose, 26% lignin, and 3.69% solvent extractive, which give good paper quality fiber and also falls within the range of wood from softwoods species. The study revealed that the optimum ASAM pulping parameters was at 16% NaOH and 90 min cooking time, resulting in Kappa number of 14.17 and pulp yield of 49.06%, while the paper tensile index of 20.86 Nm/g, tear index of 22.64 mN.m2/g, and brightness of 39.32% were obtained. The biometric and chemical characterizations of the ASAM pulped bamboo have shown that ASAM pulped bamboo produces high-quality pulp and paper suitable for packaging and printing paper. Hence, the use of bamboo materials can reduce the burden on the forest, due to the increasing demand for paper and paper products, while supporting the natural biodiversity.

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Section: Effect Of Anthraquinone (Aq) Additionmentioning

confidence: 97%

Alkaline Sulfite Anthraquinone and Methanol (ASAM) Pulping Process of Tropical Bamboo (Gigantochloa scortechinii)

Paridah¹,

Moradbak²,

Mohamed³

et al. 2018

Bamboo - Current and Future Prospects

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“…Color in surface water can prevent sunlight from penetrating down into the water column, and therefore affects the photosynthesis of aquatic plants and can lead to the depletion of dissolved oxygen. Lignin effluence has been through cooking and bleaching processes using chlorine, which may cause transformation into toxic substances (Ali & Sreekrishnan 2001;Kaur et al 2018;Norgren & Edlund 2014;Nyman et al 1986). Lignin can be recycled and some lignin-derived materials have good mechanical and physicochemical properties that can be used in the manufacture of plastics, resins, and fuel production (Naseem et al 2016;Norgren & Edlund 2014), biosorbent materials (Klapiszewski et al 2017a), adsorbents , super adsorbent polymer composites Wang et al 2014), polymeric hydrogel (Wang et al 2017), surfactants , and materialassisted synthesis of catalysts .…”

Section: Introductionmentioning

confidence: 99%

Applicability of Iron (III) Trimesic (Fe-BTC) to Enhance Lignin Separation from Pulp and Paper Wastewater

Pangkumhang¹,

Jutaporn²,

Sorachoti³

et al. 2019

JSM

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This study assesses the application of iron (III) trimesic (Fe-BTC) as a coagulant-flocculant to remove lignin from pulp and paper (P&P) wastewater. In this research, Fe-BTC was characterized by X-ray diffraction (XRD), while the functional groups of Fe-BTC and lignin were analyzed by Fourier transform infrared (FT-IR) spectroscopy. Scanning electron microscopy (SEM) determined the surface morphology of the material. The influential parameters affecting lignin removal included the initial lignin concentration, the quantity of Fe-BTC, and the pH which were investigated using a single batch mixing system. The experimental and optimum operational conditions were determined using Box-Behnken design (BBD). Fe-BTC dosage plays a major role in efficiently removing lignin, while the pH and initial lignin concentration had no significant effect. Greater than 80% removal efficiency could be achieved with a Fe-BTC dosage as low as 2 g/L. The proposed mechanism of lignin aggregation was that Fe molecules were released from unsaturated sites of Fe-BTC and then formed new bonds with O in the methoxy lignin group. The interaction between Fe-BTC and lignin was π-π stacking (benzene ring), which explains the formation of F-O bonds in the lignin sludge. ABSTRAK Kajian ini menilai penggunaan besi (III) trimesik (Fe-BTC) sebagai bahan penggumpal untuk menyingkirkan lignin daripada air sisa pulpa dan kertas (P&P). Dalam kajian ini, Fe-BTC dicirikan oleh pembelauan sinar-x (XRD) manakala kumpulan fungsian Fe-BTC dan lignin dianalisis melalui spektroskopi transformasi Fourier inframerah (FT-IR). MikroskopElektron Imbasan (SEM) menentukan morfologi permukaan untuk bahan. Parameter penting yang menyebabkan penyingkiran lignin adalah termasuk kepekatan pemula lignin, kuantiti Fe-BTC dan pH yang dikaji menggunakan sistem campuran kelompok tunggal. Syarat uji kaji dan pengoperasian optimum telah ditentukan dengan menggunakan reka bentuk Box-Behnken (BBD). Dos Fe-BTC memainkan peranan penting dalam menyingkirkan lignin dengan cekap, manakala pH dan kepekatan pemula lignin tidak menunjukkan kesan yang ketara. Lebih daripada 80% kecekapan penyingkiran boleh dicapai dengan dos Fe-BTC serendah 2 g/L. Mekanisme cadangan daripada pengagregatan lignin adalah bahawa Fe molekul dibebaskan dari unsatured tapak Fe-BTC dan kemudian membentuk ikatan baharu dengan O dalam kumpulan lignin metoksi. Interaksi antara Fe-BTC dan lignin ialah susunan π-π (gelang benzena) yang menjelaskan pembentukan ikatan F-O dalam enap-cemar lignin.Kata kunci: Fe-BTC; lignin; MOFs; pulpa dan kertas; rangka kerja logam-organik; reka bentuk Box-Behnken

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“…The major groups of chlorolignin compounds found in pulp mill effluent are chlorophenols, chlorocatechols, chlorotannins, chlorinated resin and fatty acids etc. (Kaur et al 2018). The reduction of chlorine compounds in pulp bleaching reduces chlorinated organics in the effluent (Kaur et al 2018, Nie et al 2013.…”

Section: Introductionmentioning

confidence: 99%

“…(Kaur et al 2018). The reduction of chlorine compounds in pulp bleaching reduces chlorinated organics in the effluent (Kaur et al 2018, Nie et al 2013. Many attempts have been studied in reducing ClO 2 consumption (Bajpai et al 2006, Shin and Mera 1994, Jahan et al 2013, 2017, Haque et al 2019, Nie et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Chlorine dioxide bleaching of nineteen non-wood plant pulps

Ferdous

Quaiyyum

Jahan

2020

Nordic Pulp &Amp; Paper Research Journal

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Bleaching of unbleached and oxygen delignified pulps from nineteen non-wood plants has been evaluated in elemental chlorine free bleaching. Chlorine dioxide charge (kappa factor 0.15, 0.20 and 0.25) and temperature (70 and 85 °C) in the delignification stage (D) were varied. Chlorine dioxide (ClO2) charge and temperature exhibited lower kappa number and higher brightness after alkaline extraction (EP) stage. High temperature ClO2 delignification (DHT) exhibited higher final pulp brightness. The final brightness of wheat straw pulp reached to 90 % after D0/DHT(EP)D1 bleaching, while banana pseudo stem pulp showed the worst bleachability. Residual hexeneuronic acid contents in final pulp from most of the non-wood plants were lower and exhibited 1–2 % higher pulp brightness in DHT process than D0 process. Oxygen delignified pulp and DHT process discharged lower COD load.

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A study on pulping of rice straw and impact of incorporation of chlorine dioxide during bleaching on pulp properties and effluents characteristics

Cited by 80 publications

References 26 publications

Alkaline Sulfite Anthraquinone and Methanol (ASAM) Pulping Process of Tropical Bamboo (Gigantochloa scortechinii)

Alkaline Sulfite Anthraquinone and Methanol (ASAM) Pulping Process of Tropical Bamboo (Gigantochloa scortechinii)

Applicability of Iron (III) Trimesic (Fe-BTC) to Enhance Lignin Separation from Pulp and Paper Wastewater

Chlorine dioxide bleaching of nineteen non-wood plant pulps

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