The efficiency of Moringa oleifera (MO) seeds as a natural coagulant in the coagulation/flocculation process, followed by nanofiltration (NF) for the removal of cyanobacterial cells and cyanotoxins is investigated. "Synthetic water" prepared for the tests comprised de-ionized water with an inoculum of microcystis protocystis cells to obtain turbidity within the 50-450 NTU range. Methodology fol...

Precipitation of arsenic as As2S3 produces little waste sludge, has the potential for low chemical consumption and selective metal(loid) removal. In this study, removal from acidic (pH 2), metallurgical wastewater was tested in industrially relevant conditions. Sulfides added at a S:As molar ratio 2.5 5 resulted 99% 84% As(III) As(V). industrial containing 17% As(V) nearly instantaneous. For sy...

Solid-liquid separation of manure is a method to produce nutrient and dry matter rich fractions with higher volumetric methane potential than that of the original liquid manure. Centrifugation and chemical precipitation and flocculation are efficient options for such separation. Centrifugation efficiency depends on factors such as manure type, G-force, and dewatering volume, while chemical prec...

Water has been one of the human life's most significant commodities. Due to increasing price toxic coagulants and method water treatment, rural people live in serious poverty use untreated drink. The best solution for problems described above is a plant-based coagulant instead chemical coagulant. Coagulants made from plants are used Mung beans, peanut seeds, coconut tree cactus, example, have m...

1. Animals immunized with the formalinized filtrates of young toxic cultures of B. botulinus produce an antitoxic serum poor in precipitins. 2. Animals immunized with the formalinized filtrates of old and partly autolyzed toxic cultures produce an antitoxic serum containing precipitins. 3. Animals immunized with toxin-free autolyzed bacteria produce a serum free from antitoxin but rich in speci...

Coagulation and flocculation are commonly used in water wastewater treatment. Despite its high effectiveness, utilization of inorganic metal salts as coagulant flocculant might cause negative impact to the environment human health. As an alternative tackle this problem, use natural coagulants aids is suggested. In study we reported gelatinized durian starch aid treat synthetic Congo red wastewa...

Background: Turbidity removal using inorganic coagulants such as iron and aluminum salts in water treatment processes causes environmental and human health concern. Historically, the use of natural coagulant to purify turbid water has been practiced for a long time. Recent research indicates that Descurainia Sophia seed can be effectively used as a natural coagulant to remove water turbidity. ...

one of the most paramount processes that play a considerable role in reducing the concentration of heavy metals during estuarine mixing is flocculation. not only does such a process cause a huge percentage of metals to come into the particulate phase, but also it provides ample nutrients for the aquatic life. in the present study, impact of such factors as salinity, ph and do on flocculation of...

Treatment of tar-containing wastewater is necessary for the successful operation of biomass gasification plants (BGPs). In the present study, tar-containing wastewater was treated using lime and alum for the removal of in-organics, followed by adsorption on powdered activated carbon (PAC) for the removal of organics. Limealum experiments were performed in a jar apparatus and activated carbon st...