نتایج جستجو برای: po43
تعداد نتایج: 350 فیلتر نتایج به سال:
batiaghata upazila, khulna district in south-west coastal region of bangladesh is the mostly saline affected area, where agriculture activities are mainly dependent on rainfall. 23 water samples from surface water and shallow tube well (stw) were collected in the monsoon season and analyzed for physico-chemical properties to classify them according to salinity hazard. electrical conductivity (e...
djendjen river is one of the largest rivers in the region of jijel (algeria). human activities such as urban discharges, industrial, agricultural, and livestock have significant effects on the quality of water. the present study attempts to evaluate the quality of water along the banks of the djendjen river at different sampling sites, using physico-chemical and bacteriological methods. the col...
Water treatment using nano-materials can have a significant impact due to its surface properties. Coagulation techniques were studied by 3 mL/L of 0.5% different coagulants (polyacrylamide, poly aluminum chloride (PAC), ferric chloride, sulfate, and nanocellulose). Results indicated that the turbidity removal efficiency 91.6%, 93.04%, 95.2%, 95.4%, 99.4%, respectively. Treatment water samples c...
Two contrasting estuarine copepods, Acartia tonsa and Eurytemora carolleeae, the former a broadcast spawner latter brood spawner, were fed constant carbon-based diatom diet, but which had variable N:P content, elemental composition (C, N, P) of tissue eggs, as well changes in rates grazing, excretion, egg production viability measured. To achieve varied Thalassiosira pseudonana was grown contin...
This study was carried out primarily to understand the hydrogeochemical processes controlling 226Ra anomalies in Ramsar area. Analyses revealed two types of water: (1) non-thermal Ca–HCO3 type and (2) thermal Na–Cl type, mainly meteoric hydrothermal origin, respectively. Non-thermal springs have higher concentrations U due silicate weathering. Thermal are characterized by high 226Ra, As, Fe, Li...
The demand for quality water free of pollutants that can be maximally utilized by soil crop production is on the societal increase. study aimed at examining some physico-chemical indices groundwater irrigation purposes from Difa, Dadinkowa and Gwani Yamaltu-Deba Gombe State, Nigeria using standard methods. Samples collected were analysed ad data mean concentration range presented aspH (6.00 - 6...
Macroalgae interact with planktonic microbes in seawater. It remains unclear how the environment and each other during cultivation processes of commercially important algal species. Such an interaction is for developing environment-friendly mariculture methods. In this study, dynamics microbial community associated Saccharina japonica were profiled seedling production stage, its environmental c...
The objective of this study is to determine various water characteristics the Bhima River and its suitability for drinking, followed by a quality index evaluation. For continuous monitoring, samples were taken at eight locations between October 2020 September 2021. physicochemical parameters, such as pH, electrical conductivity (EC), total dissolved solids (TDS), oxygen (DO), alkalinity (TA), h...
Abstract Accumulation of water treatment sludge is a major environment problem in the purification process. Recovery waste constituents or reuse cost-effective method handling this environmental dilemma. The present study investigates suitability production bricks and recovery aluminum from accumulated at Biyagama drinking plant (BDWTP) Sri Lanka. chemical parameters total organic carbon, pH, n...
Aquaculture wastewater is suitable for algal growth especially due to its ammonium and nitrate content. Therefore, the can be utilized after a few amendments biomass production recovery of valuable pigments. In present study, aquaculture discharged from Pangasius culture system was commercially cyanobacterium Spirulina (Arthrospira) platensis with an aim extract economically important pigments ...
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