玉米秸皮生物機(jī)械法制漿的研究
發(fā)布時(shí)間：2018-11-24 11:22
【摘要】：玉米秸皮含有37.62%的硝酸乙醇纖維素,重均纖維長(zhǎng)度為0.987,它比全玉米秸稈更適合于做造紙?jiān)�。同時(shí)考慮到目前機(jī)械法制漿高能耗、化學(xué)制漿引起環(huán)境污染的問(wèn)題。本論文采用新的木質(zhì)纖維素原料——玉米秸皮作為造紙?jiān)线M(jìn)行生物機(jī)械法制漿的研究。 通過(guò)Bavendamm-PDA平板從濟(jì)南長(zhǎng)清玉米種植地篩選出四株產(chǎn)生變色反應(yīng)的菌株。從山東大學(xué)微生物技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室獲得的五株菌中Phanerochaete chrysosporium-25和Phanerochaete chrysosporium-14的Bavendamm-PDA平板呈陰性,Trametes hirsuta lg-9,Trametes versicolor,Irpex lacteus均呈陽(yáng)性。這9種菌株的玉米秸皮降解實(shí)驗(yàn)結(jié)果顯示對(duì)玉米秸皮選擇性降解的順序?yàn)?Trametes hirsuta lg-9 Sd P.C.-14 P.C.-25 Trametes versicolor Sc。 將篩選到的對(duì)玉米秸皮選擇性降解最強(qiáng)的菌株Trametes hirsuta lg-9用于玉米秸皮生物機(jī)械法制漿的研究。通過(guò)不同菌齡、不同培養(yǎng)方式得到的接種物接種玉米秸皮在無(wú)外通空氣和連續(xù)通空氣兩種條件下預(yù)處理玉米秸皮45d制機(jī)械漿,得到的結(jié)果顯示無(wú)外通空氣方式培養(yǎng),低菌齡的接種物處理得到的紙漿強(qiáng)度優(yōu)于高菌齡;同菌齡的培養(yǎng)物,固態(tài)靜置培養(yǎng)接種物處理樣強(qiáng)度性能優(yōu)于液態(tài)震蕩培養(yǎng)接種物。連續(xù)通空氣培養(yǎng)時(shí),由于打漿度上的差異,有待研究。用固態(tài)靜置培養(yǎng)物接種,無(wú)外通空氣方式引起的重量損失小于外通空氣,且強(qiáng)度性能也優(yōu)于后者。用液態(tài)震蕩培養(yǎng)物接種,則結(jié)果相反。Trametes hirsuta lg-9預(yù)處理引起了玉米秸皮機(jī)械漿白度和光散射系數(shù)的降低和光吸收系數(shù)的增加。且Trametes hirsuta lg-9預(yù)處理后的玉米秸皮在所研究的兩段磨漿條件下,引起的磨漿能耗降低幅度在70-85%之間。另外研究發(fā)現(xiàn)Trametes hirsuta lg-9玉米秸皮生物機(jī)械漿的強(qiáng)度性能與打漿過(guò)程中引起的細(xì)小增量與保水值增量的比值有較好的線性正相關(guān)關(guān)系。 通過(guò)預(yù)處理時(shí)間對(duì)Trametes hirsuta lg-9玉米秸皮制生物機(jī)械漿影響的研究發(fā)現(xiàn),Trametes hirsuta lg-9預(yù)處理玉米秸皮過(guò)程中產(chǎn)木聚糖酶、纖維素酶和漆酶,產(chǎn)酶量順序?yàn)槟揪厶敲咐w維素酶漆酶。產(chǎn)酶速率表現(xiàn)為初期增加較快,中期減緩,后期降低的趨勢(shì)。且Trametes hirsuta lg-9預(yù)處理玉米秸皮引起了發(fā)酵體系pH的變化。磨漿段能耗的測(cè)定結(jié)果顯示磨漿能耗隨著處理時(shí)間不斷降低,且在α=0.1時(shí),磨漿能耗與Trametes hirsuta lg-9預(yù)處理過(guò)程中的產(chǎn)酶量無(wú)相關(guān)性,而與Trametes hirsuta lg-9預(yù)處理后的玉米秸皮紅外光譜3414cm~-1和1653cm~-1的相對(duì)吸收強(qiáng)度具有線性相關(guān)性。造成Trametes hirsuta lg-9玉米秸皮機(jī)械漿的強(qiáng)度隨著處理時(shí)間降低的原因是纖維素酶不斷積累引起纖維素解聚,引起α-纖維素含量的降低。Trametes hirsuta lg-9預(yù)處理秸皮增加了脂肪族羰基和與苯環(huán)共軛的羰基含量,因此引起了Trametes hirsuta lg-9預(yù)處理玉米秸皮機(jī)械漿的光吸收系數(shù)的增加,從而降低了紙漿的白度。Trametes hirsuta lg-9預(yù)處理玉米秸皮過(guò)程中對(duì)愈瘡木基的降解多于紫丁香基的降解,且預(yù)處理初期對(duì)纖維素的結(jié)晶區(qū)降解多于無(wú)定形區(qū),而后期以對(duì)無(wú)定形區(qū)的降解為主。Trametes hirsuta lg-9預(yù)處理玉米秸皮的顯微觀察顯示Trametes hirsuta lg-9對(duì)玉米秸皮的侵入從表皮細(xì)胞開(kāi)始逐漸深入到薄組織和維管束部分。
[Abstract]:The corn-straw skin contains 37. 62% of cellulose nitrate, and the weight-average fiber length is 0.9887, which is more suitable for making paper-making raw materials than the whole-corn straw. at the same time, the problems of high energy consumption and environmental pollution caused by chemical pulping are taken into consideration. In this paper, the new wood-cellulose raw material _ corn straw skin is used as the paper-making raw material to study the bio-mechanical pulping. A four-plant color-changing reaction was selected from the long-clear corn of Jinan through the Bavendamm-PDA plate. The Bavendamm-PDA plates of the five strains obtained from the National Key Laboratory of the National Key Laboratory of the University of Shandong University were negative, and Tramees hirsuta lg-9, Trametes versicolor and Irpex lacteus were all in the form of negative. The results of the experiment on the degradation of the corn-straw skin of the 9 strains showed that the order of the selective degradation of the corn-straw skin was as follows: Tramees Hirsua lg-9 Sd P. C.-14 P. C.-25 Trametes versicolor Sc. The strain Tramedes Hirsuuta lg-9, which is the most selective for the selective degradation of the corn straw skin, is used for the biological mechanical method of the corn straw skin. The results of the study on the pulping were carried out by inoculating the corn straw skin with the inoculums of different ages and different culture methods. The mechanical pulp of the corn straw skin 45d was pre-treated under two conditions without external air and continuous air. The results showed that no external air was available. The strength of the pulp is superior to that of the high-bacteria-age, and the strength of the inoculum treated with the culture of the same age is superior to that of the liquid. Culture of the inoculum. During continuous air culture, due to the difference in the beating degree It is to be studied. The weight loss caused by the non-external air mode is less than that of the external air and the strength property is less than that of the external air when the solid-state stand culture is used for inoculation. is also superior to the latter, and is inoculated with a liquid oscillating culture, in contrast, that pretreatment of the Trametes Hirsuta lg-9 lead to the reduction and light absorption of the whiteness and light scattering coefficient of the corn-straw-peel mechanical pulp. The increase of the coefficient and the decrease of the energy consumption of the corn straw after the pre-treatment of Tramedes Hirsurea lg-9 in the studied two-stage slurry are 70-In addition, it was found that the ratio of the strength and the increment of the fine increment and the water-retaining value caused during the beating process of the Tramees hirsuta lg-9 corn-straw-skin bio-mechanical pulp has a good linearity. A study on the effect of pretreatment time on the biological mechanical pulp of the corn straw skin of Tramees Hirsuuta lg-9 was found in the study that the production of xylanase, cellulase and laccase in the process of pretreatment of the corn straw skin by Tramees Hirsuuta lg-9, and the sequence of the enzyme production was wood-poly. The enzyme of the enzyme of the enzyme of the enzyme of the enzyme of the enzyme of the enzyme of the carbohydrase. The rate of the production of the enzyme is fast and the medium-term decrease in the initial stage. in that late and late stage, the pretreatment of the corn straw skin by the Tramees Hirsuuta lg-9 The results of the energy consumption of the pulp section show that the energy consumption of the slurry is decreased with the treatment time, and the energy consumption of the slurry is in the process of pretreatment with the Tramees Hirsua lg-9 when the energy consumption of the slurry is 0. 1. The relative absorption of the infrared spectra of the cornstalk skin, 3414cm ~ -1, and 1653cm ~ -1, which was pre-treated with Tramees Hirsuuta lg-9, was not related. The reason for the decrease of the strength of the mechanical pulp of the Trametes hirsuta lg-9 corn straw is that the cellulose is depolymerized due to the continuous accumulation of the cellulose, causing the reduction of the strength of the mechanical pulp of the Trametes hirsuta lg-9. The decrease of the content of cellulose. The pre-treated straw skin of Tramees Hirsuuta lg-9 increased the content of the base of the aliphatic radicals and the coequal with the benzene ring, thus resulting in an increase in the light absorption coefficient of the mechanical pulp of the corn-straw-peel mechanical pulp by the Tramees Hirsua lg-9. the degradation of the guaiacyl group is more than that of the syringyl group in the process of pretreatment of the corn straw skin by the method of the tramees hirsota lg-9, and the crystallization area of the cellulose is more degraded than the amorphous area at the early stage of the pretreatment, and the later stage is not The degradation of the shaping region is the main. The microscopic observation of the pretreatment of the corn straw skin by the Tramees hirschuta lg-9 shows that the invasion of the corn stalk skin from the epidermal cells to the thin
【學(xué)位授予單位】：山東輕工業(yè)學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TS743
本文編號(hào)：2353510
[Abstract]:The corn-straw skin contains 37. 62% of cellulose nitrate, and the weight-average fiber length is 0.9887, which is more suitable for making paper-making raw materials than the whole-corn straw. at the same time, the problems of high energy consumption and environmental pollution caused by chemical pulping are taken into consideration. In this paper, the new wood-cellulose raw material _ corn straw skin is used as the paper-making raw material to study the bio-mechanical pulping. A four-plant color-changing reaction was selected from the long-clear corn of Jinan through the Bavendamm-PDA plate. The Bavendamm-PDA plates of the five strains obtained from the National Key Laboratory of the National Key Laboratory of the University of Shandong University were negative, and Tramees hirsuta lg-9, Trametes versicolor and Irpex lacteus were all in the form of negative. The results of the experiment on the degradation of the corn-straw skin of the 9 strains showed that the order of the selective degradation of the corn-straw skin was as follows: Tramees Hirsua lg-9 Sd P. C.-14 P. C.-25 Trametes versicolor Sc. The strain Tramedes Hirsuuta lg-9, which is the most selective for the selective degradation of the corn straw skin, is used for the biological mechanical method of the corn straw skin. The results of the study on the pulping were carried out by inoculating the corn straw skin with the inoculums of different ages and different culture methods. The mechanical pulp of the corn straw skin 45d was pre-treated under two conditions without external air and continuous air. The results showed that no external air was available. The strength of the pulp is superior to that of the high-bacteria-age, and the strength of the inoculum treated with the culture of the same age is superior to that of the liquid. Culture of the inoculum. During continuous air culture, due to the difference in the beating degree It is to be studied. The weight loss caused by the non-external air mode is less than that of the external air and the strength property is less than that of the external air when the solid-state stand culture is used for inoculation. is also superior to the latter, and is inoculated with a liquid oscillating culture, in contrast, that pretreatment of the Trametes Hirsuta lg-9 lead to the reduction and light absorption of the whiteness and light scattering coefficient of the corn-straw-peel mechanical pulp. The increase of the coefficient and the decrease of the energy consumption of the corn straw after the pre-treatment of Tramedes Hirsurea lg-9 in the studied two-stage slurry are 70-In addition, it was found that the ratio of the strength and the increment of the fine increment and the water-retaining value caused during the beating process of the Tramees hirsuta lg-9 corn-straw-skin bio-mechanical pulp has a good linearity. A study on the effect of pretreatment time on the biological mechanical pulp of the corn straw skin of Tramees Hirsuuta lg-9 was found in the study that the production of xylanase, cellulase and laccase in the process of pretreatment of the corn straw skin by Tramees Hirsuuta lg-9, and the sequence of the enzyme production was wood-poly. The enzyme of the enzyme of the enzyme of the enzyme of the enzyme of the enzyme of the enzyme of the carbohydrase. The rate of the production of the enzyme is fast and the medium-term decrease in the initial stage. in that late and late stage, the pretreatment of the corn straw skin by the Tramees Hirsuuta lg-9 The results of the energy consumption of the pulp section show that the energy consumption of the slurry is decreased with the treatment time, and the energy consumption of the slurry is in the process of pretreatment with the Tramees Hirsua lg-9 when the energy consumption of the slurry is 0. 1. The relative absorption of the infrared spectra of the cornstalk skin, 3414cm ~ -1, and 1653cm ~ -1, which was pre-treated with Tramees Hirsuuta lg-9, was not related. The reason for the decrease of the strength of the mechanical pulp of the Trametes hirsuta lg-9 corn straw is that the cellulose is depolymerized due to the continuous accumulation of the cellulose, causing the reduction of the strength of the mechanical pulp of the Trametes hirsuta lg-9. The decrease of the content of cellulose. The pre-treated straw skin of Tramees Hirsuuta lg-9 increased the content of the base of the aliphatic radicals and the coequal with the benzene ring, thus resulting in an increase in the light absorption coefficient of the mechanical pulp of the corn-straw-peel mechanical pulp by the Tramees Hirsua lg-9. the degradation of the guaiacyl group is more than that of the syringyl group in the process of pretreatment of the corn straw skin by the method of the tramees hirsota lg-9, and the crystallization area of the cellulose is more degraded than the amorphous area at the early stage of the pretreatment, and the later stage is not The degradation of the shaping region is the main. The microscopic observation of the pretreatment of the corn straw skin by the Tramees hirschuta lg-9 shows that the invasion of the corn stalk skin from the epidermal cells to the thin
【學(xué)位授予單位】：山東輕工業(yè)學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TS743
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 孫竹瑩,郭升民;玉米秸桿皮穰分離及其制漿試驗(yàn)[J];中華紙業(yè);2001年05期
2 丁琳;李士勇;張彥波;楊汝男;;氧漂玉米稈化學(xué)漿的光催化補(bǔ)充漂白[J];大連工業(yè)大學(xué)學(xué)報(bào);2008年01期
3 何為,詹懷宇,王習(xí)文,伍紅;一種改進(jìn)的漆酶酶活檢測(cè)方法[J];華南理工大學(xué)學(xué)報(bào)(自然科學(xué)版);2003年12期
4 何立明;王文杰;王橋;魏斌;厲青;王昌佐;劉曉曼;;中國(guó)秸稈焚燒的遙感監(jiān)測(cè)與分析[J];中國(guó)環(huán)境監(jiān)測(cè);2007年01期
5 池玉杰,鮑甫成;木質(zhì)素生物降解與生物制漿的研究現(xiàn)狀分析[J];林業(yè)科學(xué);2004年03期
6 劉瑞偉;;我國(guó)農(nóng)作物秸稈利用現(xiàn)狀及對(duì)策[J];農(nóng)業(yè)與技術(shù);2009年01期
7 李金花,宋紅竹,薛永常,張綺紋,李勝剛;我國(guó)制漿造紙木材纖維原料的現(xiàn)狀及發(fā)展對(duì)策[J];世界林業(yè)研究;2003年06期
8 庫(kù)麗霞,陳彥惠,岳建芝,張百良,吳連成;玉米秸稈能量指標(biāo)的測(cè)定和利用研究[J];玉米科學(xué);2004年01期
9 李明;;世界玉米生產(chǎn)回顧和展望[J];玉米科學(xué);2010年03期
10 管斌,曲音波,高培基,孫艷玲;纖維素酶酶系對(duì)草漿改性的研究[J];中國(guó)造紙學(xué)報(bào);2001年02期
相關(guān)碩士學(xué)位論文 前1條
1 陳洪雷;玉米秸稈廢棄物在制漿造紙領(lǐng)域中的應(yīng)用[D];山東輕工業(yè)學(xué)院;2008年
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