利用玉米淀粉工业废弃物生产单细胞蛋白饲料优良菌种的选育   总被引：8，自引：0，他引：8  

邹莉  朱万强  陈立明  宋东国  丁俊男  张桂华 《东北林业大学学报》2005,33(4):52-53

采用自然发酵法,从玉米淀粉生产废液和废渣中分离纯化到6株酵母菌,经鉴定它们分别属于裂殖酵母属(Schizosaccharomyces)、汉逊酵母属(Hansenula)和毕赤酵母属(Pichia)。6株酵母菌都能以玉米淀粉生产废液为营养基质生产菌体蛋白饲料———单细胞蛋白质(single-cell protein)。对各菌种SCP产量的统计分析表明:3个属的酵母菌生产SCP的能力具有显著差异,其中毕赤酵母属生产SCP的能力最强(P>0.05),是生产SCP饲料优良菌种。  相似文献   

屋顶绿化植物对废弃物转化基质的适应性研究     

周媛  陈法志  谭庆  许林  郭彩霞  童俊  戢小梅  董艳芳 《安徽农业科学》2011,(8):4844-4846

[目的]研究屋顶绿化植物对废弃物转化基质的适应性。[方法]采用正交试验法,进行4因素3水平正交试验,以4种工农业废弃物粉煤灰、煤渣、秸秆和园林废弃物为基质,试验8种景天属植物的适应性情况。[结果]适宜屋顶绿化的废弃物转化基质配方为粉煤灰、煤渣、秸秆、园林废弃物,比例分别为1∶1∶1∶1、1∶2∶2∶2、2∶1∶2∶1;8种景天属植物中佛甲草、垂盆草、宽叶佛甲草、德景天、费菜与八宝景天对废弃物转化基质适应性较强。[结论]废弃物转化基质应用于屋顶绿化中具有广阔的市场前景。  相似文献   

Dynamics of Integration between Chinese and International Waste Paper Markets     

Di Shang  Diao Gang 《Journal of Sustainable Forestry》2020,39(5):433-444

ABSTRACT

China is the largest importer of waste paper in the world and is highly dependent on the international market. Thus, the relationship between Chinese and international waste paper markets affects the supply of fiber materials in China’s paper industry. This study examined the dynamic relationship between the two markets and the impact of newly implemented policies on both markets. We used unit root tests, cointegration test, vector error correction model (VECM) and frequency-domain Granger causality test to investigate the integration between Chinese and international waste paper markets and identify which of the two markets is the price leader. The results revealed that the two markets were integrated after controlling for structural breaks, and the Chinese market acted as the price leader. Since the supply of waste paper and wood pulp is insufficient in China to meet the fiber demand of the paper industry, waste paper import restrictions have significantly affected the supply of fiber materials in China’s paper industry. Therefore, the Chinese government should fully consider the benefit of market integration and make full use of international waste paper resources to satisfy the large domestic demand for paper products.  相似文献   

抚顺西排土场矸石山阴坡物种多样性变化特征     

张咏新  赵思金 《林业科技》2012,37(5):55-58

抚顺西排土场矸石山阴坡随着排矸年限的增加，物种多样性发生变化，物种数由初期的4科5种增至后期14科29种。植被由最初的鹅绒藤＋豚草＋刺蒺藜群落，逐步演变到榆树群落。在阴坡，不同排矸年限的样地，植物群落多样性指数随着排矸时间的延长而增加；物种综合多样性指数、丰富度指数与排矸年限呈显著正相关关系。  相似文献   

混合絮凝剂处理中纤板厂木片水洗废水的研究     

熊燕萍  顾心慧  高克文  梅雅茹  徐咏兰 《江西林业科技》2012,(1):56-58

对中密度纤维板厂木片水洗废水处理方案进行研究:混合絮凝剂的成分和最佳投放量经研究确定为15 g/m3聚合氯化铝和1 g/m3聚丙烯酰胺,对木片质量也不会有较大损害;确定最佳处理水量占总水量的比例为15%,既能使废水水质得到改善,而且处理成本为最小,达到资源回收利用的目的。  相似文献   

园林有机废物合成栽培基质的应用前景     

孙克君  林鸿辉 《广东园林》2007,29(B09):99-101

介绍园林有机废物变栽培基质的原因、过程，产品应用实例，表明园林有机废物变栽培基质是节约型园林绿化发展的新途径，具有较好的社会效益和生态效益。  相似文献   

氧化塘处理原木蒸煮废水     

达明珠 《木材工业》2005,19(1):33-34,39

介绍了原木蒸煮废水的处理方法,提出氧化塘法是小型木材加工厂处理该废水的最佳选择,并用实例简单介绍了氧化塘的设计选型问题.  相似文献   

杏鲍菇菇脚对肉兔生长性能及肉品质影响研究   总被引：1，自引：0，他引：1  

曾宪录  郭丽琼  陈红曼  林俊芳  曹荣伟 《中国食用菌》2014,(3):45-47,51

研究在饲料中添加杏鲍菇废弃菇脚,并且投喂柚子皮对肉兔的生长性能及肉品质的影响。把48只30d～32d龄的新西兰肉兔随机分为3组,分别投喂0％、1％、5％烘干菇脚,同时每组又分为2组,分别投喂烘干柚子皮。结果表明添加5％杏鲍菇菇脚及投喂柚予皮均能显著降低兔粪TBARS水平,改善肠道抗氧化状况;饲喂菇脚对肉兔增重和兔肉品质没有影响,兔肉中无棉酚残留;柚子皮对增重无显著影响,但能显著降低兔肉胆固醇含量。  相似文献   

基于问卷调查的广西北部湾居民对废弃土地的响应--以钦州市钦南区为例     

李秀梅  陆家赋  覃庆廷  李素霞 《商界．城乡致富》2014,(11):65-66

采用问卷调查的方式,以钦州市钦南区为例,调查广西北部湾经济开发区荒废土地现状以及当地村民的反应。调查结果表明,在接受调查范围内有55%的村民有荒废土地;针对荒废土地的处理,45%的村民表示将荒废土地转让,33%的村民表示任其自由发展;面对被荒废的土地,28%的村民迫切想改变现状,41%的表示无能为力,31%的持无所谓态度。针对上述情况,分析了原因并提出了一定的措施,以期为当地的土地规划和利用提供参考。  相似文献   

Residents’ perceptions and attitudes toward waste treatment facility sites and their possible conversion: A literature review     

《Urban Forestry & Urban Greening》2016

The siting a landfill or waste treatment facility and the redevelopment of a brownfield or former landfill site are generally treated as independent issues in the research literature. Nonetheless, the two are important elements of community development and urban revitalization efforts. The purpose of this paper is to provide an integrated review of the current literature on attitudes toward waste treatment sites and their potential conversion for recreation use. We begin by examining research on residents’ perceptions of and attitudes toward proposed and existing waste treatment facility sites, including the perceived impacts and determinants of attitudes toward these sites. Next we summarize work that has explored the subsequent conversion of former landfills or brownfield sites, with a particular emphasis on repurposing these sites for green space and recreation use. We conclude by summarizing key issues and implications for future research and policy development.  相似文献