International Sugar Journal最新文献

Initial study on solar process heat for South African sugar mills 南非糖厂太阳能制热的初步研究

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2016-01-01 DOI: 10.18086/eurosun.2016.02.14

S. Hess, H. Beukes, G. Smith, F. Dinter

{"title":"Initial study on solar process heat for South African sugar mills","authors":"S. Hess, H. Beukes, G. Smith, F. Dinter","doi":"10.18086/eurosun.2016.02.14","DOIUrl":"https://doi.org/10.18086/eurosun.2016.02.14","url":null,"abstract":"Solar thermal (ST) systems for the South African (SA) sugar industry could reduce coal consumption in the boilers and partly replace bagasse (pressed sugar cane fibres) as a heating fuel. Based on the heat and mass balance of a representative sugar mill, the most promising solar heat integration points were identified and preranked according to their potential energetic and economic benefits. The identified opportunities for solar process heat (SPH) are the generation of live steam and exhaust steam, the pre-heating of boiler feed water, the drying of bagasse and raw sugar, and the heating of clear juice. Without additional thermal storage, ST systems can supply between 12 and 27 % of the heat demand of these processes. The estimated levelized costs of heat (LCOH) for the SPH systems range from 2.57 Eurocent/kWh (0.42 ZAR/kWh) for solar drying of raw sugar during the crushing season (CS) to 4.57 Eurocent/kWh (0.75 ZAR/kWh) for all-year solar live steam generation. This study assumes that SPH has to compete with coal, which is the cheapest energy source in SA, to replace bagasse. Using current coal prices and past price increase rates, the estimated achievable internal rate of return (IRR) for solar live steam generation is 4.6 % if the steam can be used during the whole year, e.g. for electricity export. The highest IRR of 9.1 % is expected for sugar drying during the crushing season.","PeriodicalId":14415,"journal":{"name":"International Sugar Journal","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67676792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Influence of thin juice pH management on thick juice color in a factory utilizing weak cation thin juice softening 弱阳离子稀汁软化厂稀汁pH值管理对浓汁色泽的影响

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2011-03-02 DOI: 10.5274/ASSBT.2011.66

C. Rhoten

{"title":"Influence of thin juice pH management on thick juice color in a factory utilizing weak cation thin juice softening","authors":"C. Rhoten","doi":"10.5274/ASSBT.2011.66","DOIUrl":"https://doi.org/10.5274/ASSBT.2011.66","url":null,"abstract":"In beet sugar factories utilizing weak cation thin juice softening, soda ash addition to thin juice is utilized to pre-soften the juice to a suitable feed hardness for supply to the weak cation reactors. Generally, there is addition of 50% caustic solution downstream of the weak cation reactors to counter the effect of H + bleed from the freshly regenerated weak cation resin during the reactor service cycle. If not precisely controlled, the post-reactor re-alkalization of the thin juice may result in over-alkalization of thin juice leading to pH rise in evaporation and an associated color rise in the juice during evaporation. The subject investigation was undertaken for the purpose of optimizing the pre-softening of thin juice while also achieving overall optimum pH management thus avoiding juice over-alkalization and the resulting associated color rise in process juices during juice concentration. A means of pre-alkalization control was developed and implemented satisfying both the pre-softening and the overall juice alkalization requirements leading to the complete elimination of the use of liquid caustic for post-reactor re-alkalization and the elimination of excessive color rise in evaporation. Optimum juice pH targets for minimum color rise in concentration are identified resulting in minimum thick juice color and invert concentration while meeting the competing juice processing requirements for the production of soft thin juice.","PeriodicalId":14415,"journal":{"name":"International Sugar Journal","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2011-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70930051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fractal applications for sugar decolorization processes. 分形在糖脱色过程中的应用。

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2009-02-25 DOI: 10.5274/ASSBT.2009.78

O. Tzschaetzsch

引用次数: 0

Reducing generation of biogenic hydrogen sulfide in sugar wastewaters 减少糖废水中生物硫化氢的产生

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2009-02-25 DOI: 10.5274/ASSBT.2009.71

Rakesh Govind, D. Ferguson

{"title":"Reducing generation of biogenic hydrogen sulfide in sugar wastewaters","authors":"Rakesh Govind, D. Ferguson","doi":"10.5274/ASSBT.2009.71","DOIUrl":"https://doi.org/10.5274/ASSBT.2009.71","url":null,"abstract":"In the manufacture of beet sugar, improving discharge water quality is a key objective for effective reuse of water for irrigation purposes. Problems associated with the discharge water includes generation of odors from biogenic hydrogen sulfide and ammonia, sludge buildup in ponds used for water retention and treatment due to precipitation of metal sulfides, and inadequate water discharge quality, in terms of total nitrogen, ammonia, fecal coliforms count, and phosphorus concentrations. Methods used to improve water quality have focused mainly on either adding chemicals to minimize odor generation, which cause toxicity issues in the discharge water or to add external aeration, which increases dissolved oxygen concentration in the water and improves aerobic treatment rates, but increases power expenditure and hence operating cost. In this paper, use of a biocatalyst solution containing enzymes has been tested in the laboratory and at field-scale. Enzymes function by inhibiting the growth of sulfate reducing bacteria (SRBs) which are responsible for biogenic hydrogen sulfide generation. Experimental and field results show that the enzyme solution tested, ZymeOut, virtually eliminates the generation of biogenic hydrogen sulfide and introduces no water toxicity, unlike conventional biocides. It also reduces the occurrence of biofilms, improves water clarity in lagoons and significantly reduces metal sulfide sludge precipitation.","PeriodicalId":14415,"journal":{"name":"International Sugar Journal","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2009-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70929925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

American Crystal Sugar's experiences with a Putsch® Jet Wash Roller Table. 美国水晶糖的Putsch®喷射洗滚轮表的经验。

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2009-01-01 DOI: 10.5274/ASSBT.2009.65

Kevin Bloom, T. Mcgillivray, Heather Jarski, S. Seaborn

引用次数: 0

Cane Payment Systems 甘蔗支付系统

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2007-11-16 DOI: 10.1002/9780470995358.CH8

M. Todd, Gareth Forber, P. Digges

引用次数: 16

Evaluation of XBEEJTM, an enhanced sugarbeet priming system 增强型甜菜诱导系统XBEEJTM的评价

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2007-02-28 DOI: 10.5274/ASSBT.2007.25

Randall L. Hemb, J. Stewart, L. Hubbell, R. Fogg, Cory J. Guza, D. Wishowski, S. Poindexter

引用次数: 3

Crop protection innovations in sugarbeet -Bayer CropScience 甜菜作物保护创新-拜耳作物科学

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2007-02-28 DOI: 10.5274/ASSBT.2007.43

K. Thorsness, J. Daniels, D. Maruska, M. Smith, C. Hicks, K. Luff, G. Simkins, J. Martín, K. Watteyne

{"title":"Crop protection innovations in sugarbeet -Bayer CropScience","authors":"K. Thorsness, J. Daniels, D. Maruska, M. Smith, C. Hicks, K. Luff, G. Simkins, J. Martín, K. Watteyne","doi":"10.5274/ASSBT.2007.43","DOIUrl":"https://doi.org/10.5274/ASSBT.2007.43","url":null,"abstract":"Bayer CropScience is developing several new innovations for crop protection in sugarbeet. Poncho™ Beta seed-treatment is a new highly systemic insecticide with a wide margin of crop safety. Poncho™ Beta protects against beet leaf hopper (Circulifer tenellus (Baker)), reducing the incidence of curly top virus, and sugarbeet root maggot (Tetanops myopaeformis), wireworm (Limonius californicus (Mannerheim), springtail (Collembola spp.), leaf miner (Pegomya hyoscyami), black bean aphid (Aphis fabae) and other insect pests. Three new emulsifiable concentrate sugarbeet herbicide formulations have been developed. The new formulations provide weed control equivalent to the previous versions of these herbicides at approximately half the volume. However, due to changes in the sugarbeet herbicide market these formulations will not be commercialized. In 2007, Bayer CropScience will offered a new soluble concentrate formulation of Gem®, a strobilurin fungicide, for control of cercospora leaf spot (Cercospora beticola), powdery mildew (Erysiphe polygoni) and suppression of rhizoctonia stem canker (Rhizoctonia solani). During 2008, Bayer CropScience will introduce Proline into the sugarbeet disease control market. Proline® is a new dimension triazole fungicide which will control all three of the before mentioned diseases. When used in rotation with Gem®, Proline® will provide growers with a season long disease control program offering sound resistance management practices.","PeriodicalId":14415,"journal":{"name":"International Sugar Journal","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2007-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70929419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Agriculture information systems for the beet sugar industry 甜菜糖业农业信息系统

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2007-02-28 DOI: 10.5274/ASSBT.2007.18

Alan B. Telck

引用次数: 0

Microwave technology: An ubiquitous in line measurement instrument for density, total solids, concentration, especially brix in a today sugar factory 微波技术:在今天的糖厂中，用于密度、总固体、浓度，特别是糖度的在线测量仪器

IF 0.3 4区农林科学

International Sugar Journal Pub Date : 2007-02-28 DOI: 10.5274/ASSBT.2007.78

Karl-Heinz Theisen, I. Geyer

引用次数: 6