造纸行业的清洁生产技术与措施分析

分析了我国造纸行业的污染现状,提出了推行清洁生产是造纸行业可持续发展的必要条件。然后从革新工艺与降污减废以及污染治理与废物利用两个方面系统阐明了推行造纸行业清洁生产的技术、措施及其环境经济效益,归纳了推行清洁生产的政策与管理方法,旨在对造纸业发展及实施污染治理工程技术有借鉴作用。     

Removal of Ethylenediaminetetraacetic acid (EDTA) from Pulp Mill Effluents by Ozonation

Ozone application was investigated for its effectiveness in the removal of ethylenediaminetetraacetic acid (EDTA) from bleaching effluent. The objectives were to compare the efficiency of ozone reaction on Na-EDTA solution with pure Fe³⁺-EDTA complex and EDTA complexes in bleaching effluent, and to test if changing pH and addition of hydrogen peroxide (H₂O₂) increases the removal of EDTA. Small ozone doses destroyed high proportions of Na-EDTA. This effect was diminished when EDTA formed complexes with other metal ions. It was shown that EDTA present in bleaching effluent was more easily oxidizable than in pure Fe³⁺-EDTA solution. Variation of initial pH value had no significant influence on the removal of Na-EDTA. Addition of hydrogen peroxide did not increase degradation of EDTA in bleaching effluent.     

箭竹原料制浆造纸小试应用研究

竹类原料是制浆造纸的好原料。云南省竹类资源居全国前列，为了使云南的竹类资源得到充分利用，我们对迪庆箭竹的化学成分进行分析，蒸煮试验，漂白试验，并抄出了符合国家Ａ级标准的箱板纸，瓦椤原纸及浆板，漂白浆板的白度达８０％以上，研究结果说明箭竹是一种较好的制浆造纸纤维原料。     

Differences in morphology and composition of skin and pulp cell walls from grapes (<Emphasis Type="Italic">Vitis vinifera</Emphasis> L.): technological implications

The morphology and composition of skin and pulp cell walls of four premium red wine grape (Vitis vinifera L.) varieties were studied to determine whether the technological differences observed in previous studies between the four different varieties during the winemaking process (especially, the anthocyanin extractability) could be partly explained by their respective cell wall compositions. Monastrell grapes showed the highest amount of cell wall material in their skins (55–57 mg cell wall/g skin), while Syrah showed the largest amount of cell wall material in the pulp (5.1 mg cell wall/g pulp). The highest percentage of galactose and cellulosic glucose in skin and pulp cell walls was also found in Monastrell grapes. The cell wall composition of Monastrell grapes, together with their morphology, suggests that the firmer pulp and skin are responsible for the difficulties this variety shows for anthocyanin extraction (extractability index varying from 37 to 60). As cell wall composition may be modulated by the action of enzymes, the activity of pectinmethylesterase, polygalacturonase, cellulase and α- and β-galactosidase was studied. No polygalacturonase and cellulase activity was found. The two galactosidases showed higher activity than pectinmethylesterase (25–290 units/g tissue versus 0.3–0.4 units/g tissue), especially in Cabernet Sauvignon grapes, although in Monastrell grapes α- and β-galactosidase activity was low, which may explain the large amount of galactose in Monastrell grapes cell wall.     

An industrial perspective on implementing on-line applications of multivariate statistics

Multivariate statistics (MVS) has enjoyed popularity in the applied science literature over the last decade. It has also been well received by industrial practitioners; however, industrial applications have had mixed results. In this paper, we focus on our experiences in developing multivariate statistical systems for industrial use. From these experiences, we identify a methodology for developing useful, long-standing industrial applications. We highlight features we feel are important in the successful development of on-line MVS applications, both technical and non-technical. Specifically, we focus on on-line systems for manufacturing environments. Many of the applications discussed grew out of industry-university collaborations. To end the paper, we recommend topics open for further academic research with an industrial focus.     

《中国造纸》2016年发表文章述评

对《中国造纸》2016年发表的文章进行了分类,并对一些论文进行了简要的分析、述评,同时介绍了获得《中国造纸》2016年度优秀论文奖各奖项的文章。     

《中国造纸》2014年发表文章述评

对《中国造纸》2014年发表的文章进行了分类,并对一些论文进行了简要的分析、述评,同时介绍了获得《中国造纸》2014年度优秀论文奖各奖项的文章。     

矿浆pH和电位对闪锌矿浮选行为的影响

研究了以乙硫氮或丁黄药为捕收剂时,矿浆pH和电位对闪锌矿单矿物浮选行为的影响,并通过紫外光谱分析了不同pH和电位条件下闪锌矿对丁黄药或乙硫氮的吸附情况。结果表明：两种捕收剂体系中,闪锌矿都只在pH值不超过4.67的酸性条件下可浮,而小于原始电位的低电位环境将导致闪锌矿可浮性严重下降;紫外光谱分析结果与浮选试验结果一致。     

EDXRF法矿浆品位在线分析系统的探讨

介绍了一套基于能量色散X射线荧光分析方法（EDXRF）的矿浆品位在线分析系统，该分析系统能对铁精矿磁选子系统的矿浆品位进行在线分析。经过现场初步应用和性能评价，该系统能够满足实际生产需要，完成选矿过程的连续在线分析，及时地指导生产，同时为高性能在线分析系统的国产化奠定了基础。     

Ozonation as a Treatment for Mechanical And Chemical Pulp Mill Effluents

Eighteen effluent types from seven thermomechanical (TMP), chemithermomechanical (CTMP), bleached chemimechanical (BCMP), and kraft pulp mills were treated in the laboratory with ozone alone or ozone in conjunction with aerobic biological treatment. Except for one mechanical pulp mill effluent, all effluents ozonized showed rapid and selective destruction of their acute toxicity, juvabiones (JB), and resin and fatty acids (RFAs) over biological and chemical oxygen demand (BOD and COD) by ozone. For acute toxicity and RFA/JB removal, aerobic biotreatment of mechanical mill effluent streams produced additive but not synergistic effects when combined with ozone treatment. Ozonation of biotreated kraft effluents yielded substantial decreases in the biologically recalcitrant residual adsorbable organic halogens (AOX), converted COD to BOD, and usually produced large decreases in color.