En este estudio evaluamos las microalgas Chlorella vulgaris y Demodesmus asymmetricus, con el fin de determinar la proporción que remueven mayor concentración nitrógeno fósforo en aguas residuales una planta tratamiento. Se realizó un diseño mezclas agua residual durante 9 días, fotoperiodo 12:12 h, invernadero. Las mayores eficiencias remoción (principalmente NO3--N NO2--N) (PO43-) se observar...

Early detection of fish diseases and identifying the underlying causes are crucial for farmers to take necessary steps mitigate potential outbreak thus avert financial losses with apparent negative implications national economy. Typically, caused by viruses bacteria; according biochemical studies, presence certain bacteria may affect level pH, DO, BOD, COD, TSS, TDS, EC, PO43-, NO3-N, NH3-N in ...

Antiscalants are well known to prevent the precipitation of carbonate and sulphate scales calcium in reverse osmosis (RO) applications, but according literature their inhibitory ability against phosphate is not clear. The objective this study was investigate if antiscalants, without acid addition, can scaling RO systems. Eight antiscalants from different manufacturers spanning a range concentra...

In the present study, impact of construction sewerage network (2014) on groundwater quality was studied example a middle-sized settlement in Great Hungarian Plain and changes water were assessed using GIS multivariate statistical analysis. As result pollution that has been going for decades, supply municipality become heavily polluted. period before (2011–2013), clear spatial differences shown ...

A series of novel layered double hydroxides (Mg-Fe-Ti-LDHs) containing Mg2+, Fe3+ and Ti4+ were prepared. The adsorption performance Mg-Fe-Ti-LDHs on vanadate in aqueous solution was investigated the effects various factors process examined, including initial concentration, adsorbent dosage, contact time, pH coexisting ions. preliminary discussion mechanism also presented. Results show that eff...

In the present work electrochemical deposition of hydroxyapatite using simulated body fluid (SBF) as an electrolytic medium was carried out on Ta and Ta/TaN coatings BIOLINE stainless steel SS316LVM (SS). The performed each substrate for 3000 6000 s, at different potentials were determined from cyclic voltammetry. best conditions found −1.4 V bare SS −1.7 coating. structural characterization by...

Nowadays, new materials for the preparation of synthetic bone grafts are being sought after. Bones consist mainly collagen fibres and hydroxyapatite crystals, so using with a similar structure is logical. Therefore, composite material was prepared by adding particles in cultivation medium bacterial nanocellulose (in-situ method). The composites were dried via air-drying lyophilization to obtain...

Summary Mangrove-dominated estuaries host a diverse microbial assemblage that facilitates nutrient and carbon conversions could play vital role in maintaining ecosystem health. In this study, we used 16S rRNA gene analysis, metabolic inference, concentrations, δ13C δ15N isotopes to evaluate the impact of land use change on near-shore biogeochemical cycles community structures within mangrove-do...

background: garcinia kola seed is consumed indiscriminately in nigeria without recourse to its potential toxicity. therefore, this study was aimed at assessing the toxicity of the aqueous extract of g. kola seeds on selected tissues of male rats.  methods: thirty male rats (215.00 ± 18.58 g) were assigned into four groups: a, b, c and d which received 0.5 ml of distilled water, 25, 50 and 100 m...

the present study aims to have a comparative study of the results, from biological monitoring as well as conventional method, based on physico-chemical variables. water quality index (wqi) and planktonic diatom metrics have been used to determine water quality and ecological conditions of the dong nai river (dnr) and canonical correspondence analysis (cca) to find out the main environmental var...