Are typhoon and marine eutrophication the possible missing sources of high dissolved organic nitrogen in wet deposition?

The aim of this study is to elaborate a possible missing source of high-throughput organic nitrogen in rainfall.The authors classified the observed flux data of dissolved organic nitrogen in terms of the attributes of the wet deposition event itself,such as the season,precipitation,air mass backward trajectory,and effect of typhoons.The monitoring results of the ocean eutrophication and the chlorophyll-a map of the surface water were compared with the trajectory of the high-flux deposition events.The results show that approximately one third of the total wet deposition organic nitrogen derived from a confluence of three factors:rain in the wet season,air masses from the ocean,and rainfall over 50 mm.It could be seen that the co-occurrence of intense events such as a typhoon and eutrophic surface sea waters might be an important source of dissolved organic nitrogen in wet deposition.

Phosphorus Reduction from Urban Wastewater Treatment Plant with Trickling Filters

The purpose of this research is to investigate a biofilm system with trickling filter as a biological alternative process during low cost treatment connection with the possibility of reducing nutrients such as phosphorus. Given that nitrogen with phosphorus that are leading causes of algal bloom resulting in increased eutrophication or chemical nutrients are the basis of this document analysis. This increase in organisms results in less oxygen in water bodies and at times, slow decay leads many fresh water ponds, lakes and rivers. The process of eutrophication unfortunately tends to favor pollution and algae, which reduce the quality of the water. Kosovo has not a long tradition in the treatment of wastewater, especially in removing phosphorus, since the country has only a plant for wastewater treatment. The present plant is intended to protect the Klina river from eutrophication from wastewater discharged after treatment. This plant currently reduced phosphorus efficiently, but the goal of this paper is to increase the percentage of removal of phosphorus to 40% through trickling filters, presenting options for optimizing work on plant Skenderaj.

Studies on the Combination of Some Selected Microorganisms for Biodegradation of Cassava Peel Wastes （Manihot Esculenta）

Cassava peel has a lot of nutrients which can be utilized as fertilizer in agriculture. However, high cellulose contents may cause difficulty for organic digestion and slow down the nutrient absorption for plants. This study aims to reach the microorganisms or their combination for biodegradating the cassava peel waste. The initial result shows that after 21 days the glucose concentration in all samples was the highest during experiment times. The reducing glucose produced in mg/mL by the selected bacteria was 9.32, higher than the selected fungie of 1.57 mg/mL. The percentage degradation of cassava peel weigh was the highest for fungi which was 52% of weigh, respectively. Meanwhile, bacteria only degradated about 31.6% after 4 weeks. However, the combination between bacteria and fungi provides the highest glucose concentration, 19.29 mg/mL and digests 62% of the mass cassava in experiment. This study suggests that biodegradation of agro-wastes in the environment to reduce biomass waste pollution is very promising.

Spacial Distribution Characteristics, Activity and Degradation Capability of the Biofilm in Integrated Vertical-flow Constructed Wetland

The spacial distribution characteristics, activity and degradation capability of the biofilm in integrated vertical-flow constructed wetland were investigated. Results showed that the biofilm widely distributed in the substrate of integrated vertical-flow constructed wetland and mainly in the 0-10 cm top layer where the activity ofdehydrogenase of the biofilm was also higher than that of other layers. The water quality could also affect the activity of the biofilm, for the TF（1,3,5-Triphenylformazan） amount reduced by the biofim incubated in water of the higher eutrophication was larger, too. The PCP （pentachlorophenol） removal rate by the substrate with biofilm was 1.5 times that without biofilm. In total, the biofilm of the down-flow chamber appeared larger biomass, higher dehydrogenase activity and stronger degradation capability of organic contamination than that in up-flow chamber and it was the major place for removal of the organic matters in waste water.

舌尖上的春节

"春节是啥?一个字:吃,两个字:消费,三个字:大聚会。"这是最近在网络上流传的一句顺口溜。春节是中国人的一个符号,除了祈求新一年里风调雨顺之外,还是一场舌尖上的狂欢。一家人围坐在热气腾腾的饭桌旁,就是透着那么一股喜庆热闹劲儿,这可以算是中国民间过年的最大特点了。"民以食为天"这句话似乎在春节这个传统佳节里显得更加入情入理。民谣中说:"初一饺子初二面,初三合子往家转,初四烙饼炒鸡蛋,初五、初六捏面团,初七、初八炸年糕,初九、初十白米饭,十一、十二八宝粥,十三、十四鱼汤丸,正月十五吃元宵。"美食几乎贯穿了春节始终,在春节文化中占据了相当大的比重。其中,最隆重、最丰富,也最讲究的一顿饭要数除夕的年夜饭了。