Treatment and Reuse of the Wastewater of Bean Products with the Phytosynthetic Bacteria and Spirulina maxima

应用光合细菌将黄泔水中的有机物降解转化为无机氮磷后养殖螺旋藻.结果表明，在实验条件下光合细菌对黄泔水COdCr的去除率可达70%，处理后的黄泔水用甲壳质絮凝澄清后加入螺旋藻并曝气进行培养，藻生长周期为22d、生长速率为20~30Mg/l·d.藻体蛋白质含量平均为52.6g/100g（干重），游离氨基酸平均含量为2.41g/100g（干重）A try on the treatment and reuse of the waste water of bean products with the phytosynthetic bacteria(PSB) and S.maxima(SM)was introduced.First the waste water of bean products was treated with PSB to decompositing organic matter,and then chitin was added for precipitating PSB,the last SM was added into the treated waste water for removing organic matter further and reusing nitrogen and phosphorous.The results of an dynamic modled experiment showed that PSB have a high removal efficiency for COD(70%) on the waste water of bean products,and SM cultured in the treated waste waster grow well,the rate of growing is 2030mg dryweight/(Ld),and the content of protein and free amino acid in SM are 52.6g/100g dryweight and 2.41g/100g dryweight respectively

Treatment and reuse of beer wastewater using the system of phytosysthetic bacteria and spirulina maxima

应用PSb将啤酒废水中的有机质降解处理为无机质，用甲壳质絮凝沉降除去PSb后加入螺旋藻进行培养.小型动态模拟实验结果表明PSb和螺旋藻不仅能高效地净化啤酒废水，对COd和nH＋4n的去除率达100%，而且能回收数量可观（781Mg（干重）/（l·d）），营养价值高（蛋白质含量为493g/100g（干重））的螺旋藻，还研究了PH、溶解氧、光照、光合细菌密度等因子对PSb去除废水有机质的影响.A study on the install of phytosysthetic bacteria (PSB) and Spirulina maxima (SM) for beer wastewater treatment and reuse was carried out.The beer wastewater was treated with PSB to decompose organic matter.Chitin was then added for PSB precipitating.Finally,SM was added to remove organic matter and reuse nitrogen and phosphorus.The effects of pH,DO,illumination,the density of PSB and SM etc.on the removal of COD by PSB and on the growth of SM were discussed.The results of a dynamic model experiment showed that the system of PSB SM not only have a high removal efficiency for COD and NH + 4 N (100%),but can also yield a large amount of SM (78.1mg (dry weight)/(L·d)) and protein in SM (49.3mg/100g (dry weight))

地方税的国际借鉴与我国相应税制建设

地方税是分税制财政体制的重要组成部分。我国1994年税制改革后,地方税制形成了初步的框架,但是在执行中还存在不少问题。本文论述在新一轮的税制改革中,如何借鉴国外地方税的经验,结合我国的具体实际情况,进一步完善我国的地方税

一种360度全景摄像机

本实用新型提供了一种小体积360度全景摄像机。该摄像机包括支架与摄像头。支架包括大、小两个半球形或内接半球多面体型支架，小支架位于大支架内部。摄像机包括四周摄像头与顶部摄像头，四周摄像头位于大支架，顶部摄像头位于小支架。与现有技术相比，本实用新型的摄像机能够实时地对水平360度，垂直180度的范围内全景无死角地实时监控；并且，由于位于小支架部分的顶部摄像头位置“下移”，减小了摄像机体积，有利于摄像机实现小型化；同时，通过控制大、小支架的尺寸比例，能够达到灵活调节顶部摄像头与四周摄像头之间距离的目的，从而使后续视频拼接的效果更好更完善

网箱养殖对底栖动物丰度和生物量的影响

对湖北省秭归县童庄河网箱养殖鲢、鳙鱼的区域与未进行网箱养殖的空旷区的底栖动物的种类组成、丰度、生物量及生物多样性进行了比较研究。结果表明,网箱内外共采集到12个物种,包括双壳类、寡毛类和摇蚊幼虫,其中优势种类为摇蚊幼虫。网箱内外底栖动物的物种数量差别不大,但物种组成存在差异。与网箱外相比,网箱内底栖动物密度、生物量和生物多样性明显下降。这表明网箱养殖降低了底栖动物的密度、生物量和生物多样性