Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53560#.VMiO0izQrzE Author(s)    M. Gophen *   Affiliation(s) Migal-Scientific Reaserch Institute, Kiryat Shmone, Israel . ABSTRACT An ecological project is proposed for the system of Lake Agmon (Hula Valley, Israel). The project indicates a change of the original concept of the Hula Project construction. Practically Lake Agmon system was found to remove negligible amounts of Nitrogen and Phosphorus from the Lake Kinneret budget. Moreover, Lake Kinneret ecosystem has undergone limnological changes. The P limited Kinneret system is currently N limited. Therefore reduction of P and enhancement of N from the Hula Valley outflow might be beneficial to the Kinneret ecosystem. Currently, the TN concentration in the Agmon outflow is lower than in its inflow and vice versa for P. Consequently, this paper recommends conveying peat soil drained waters, the...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53552#.VMiJdCzQrzE Author(s)    Bente Foereid *   Affiliation(s) Bioforsk—Norwegian Institute for Agricultural and Environmental Research, As, Norway . ABSTRACT Biochsr,  i.e . charred organic material, appears to increase nutrient retention in soil. The mechanism for how this happens is not clear. Here two possible mechanisms, adsorption and microbial immobilisation, are suggested and compared. It is also suggested that we use biochar in wastewater treatment, and so potentially integrate it better into the total waste management cycle.   KEYWORDS Biochar , Nutrients , Wastewater Treatment Cite this paper Foereid, B. (2015) Biochar in Nutrient Recycling—The Effect and Its Use in Wastewater Treatment. Open Journal of Soil Science , 5 , 39-44. doi: 10.4236/ojss.2015.52004 .   References [ 1 ] Population Division, D...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53186#.VLcb1cnQrzE Author(s)   Toshinori Tabata 1* , Kazuaki Hiramatsu 2 , Masayoshi Harada 2   Affiliation(s) 1 Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan . 2 Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan . ABSTRACT The aim of this study is to investigate the condition of the Ariake Sea, Japan, which has been suffering from severe environmental issues for the past few decades. Water quality data have been generated from several points in this area for over 30 years by the Fukuoka, Saga, Kumamoto, and Nagasaki prefectures. In order to understand the characteristics of this sea, principal component analysis (PCA) was utilized using 11 water quality parameters; transparency, temperature, salinity, dissolve...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50239#.VDM9IVfHRK0 Author(s)     M. Gophen , M. Meron , V. Orlov-Levin , Y. Tsipris Affiliation(s) Migal—The Upper Galilee Scientific Research Institute, Kiryat Shmona, Israel . ABSTRACT Until the late 1950s the Hula Valley, located between altitude of 170 masl in the northern part and 61 masl in the southern part, was covered by the old shallow Lake Hula (1.5 m mean depth; 1400 ha water surface); and 4500 ha of swamps partly or permanently were water covered. During 1950-1957 the old Lake Hula and the wetlands were drained and converted into agricultural usage. As a result of inappropriate agricultural management, a reclamation project (Hula Pro...