SUITABILITY OF NATURAL COAGLANT (MORIENGA OLEIFERA) TO REPLACE ALUM

Water is an important resource for life. River water, bore water, well water etc is source for drinking water & other activities in Indapur Taluka, Pune District, Maharashtra, India .River water is not consider as a pure water. Because in river water with dissolved non essential material in it. The only way to purify the river water is purification process by using natural coagulant. Due to which problem of pollutant water quality improves high important in the present day. The quality of any source of water is depends upon its physical & chemical properties. Various author conducted their studies on chemical & physical properties of pollutant water. This review attempts to highlight the main achievement in purifying water & the outline the advantages of using natural coagulant (MO) to replace chemical coagulant (Alum) for purification of water

Suitability of Natural Coaglant (Morienga Oleifera) to Replace Alum

Water is an important resource for life. River water, bore water, well water etc is source for drinking water & other activities in Indapur Taluka, Pune District, Maharashtra, India .River water is not consider as a pure water. Because in river water with dissolved non essential material in it. The only way to purify the river water is purification process by using natural coagulant. Due to which problem of pollutant water quality improves high important in the present day. The quality of any source of water is depends upon its physical & chemical properties. Various author conducted their studies on chemical & physical properties of pollutant water. This review attempts to highlight the main achievement in purifying water & the outline the advantages of using natural coagulant (MO) to replace chemical coagulant (Alum) for purification of water

Evaluation Performance of Natural Strychnos Potatorum over the Synthetic Coagulant Alum, for the Treatment of Turbid Water

Abstract: The polysaccharides and proteins of various seeds have bioflocculant properties. The performance of naturally occurring Strychnos potatorum was evaluated against the chemical coagulant alum. The study involved extensive jar test experiments using Strychnos potatorum suspension and alum solution either independently or in combination with spiked turbid water prepared in the laboratory. It was observed that reduction in turbidity level depend on the raw water turbidity. Strychnos potatorum was found effective when used in low dosages 0.25 to 3.5 mg/L. It acts as good coagulant and coagulant aid at higher turbidity 1000-3000 NTU. The prepared solution of Strychnos potatorum was kept for 4 days in refrigerator. It was used for removal of turbidity at nearly same raw water turbidity with identical dose to evaluate the effect of aging. The removal efficiency of Strychnos potatorum solution was observed better on second day as compare to first, second and third day

The Unquantified Risk of Post-Fire Metal Concentration in Soil: a Review

Forest fire is a natural disturbance that occurs in many terrestrial ecosystems specifically in the semi-arid environments and is considered to be an important cause of environmental change. Though many causes of fire are identified, including lightning, volcanic eruption, power line sparks, etc., human involvement is the most significant factor. Fire events are able to alter the physical, chemical and biogeochemical properties of the soil and surface materials and are able to release major and trace metals into the environment. This may be more significant in mining-affected and industrial landscapes, where elevated concentrations of metals present in the soil. After the fire event, metals become more mobile due to the increase in soil surface exposure and the mobility associated with ash dispersal. This mobility may increase the bioavailability of the metals, which may generate water quality issues and may contribute to human and environmental health concerns. Even though, the influences of fire on many soil properties are well established, the behaviour of metals with respect to fire is not well investigated. However, a few studies report that major and trace metals include Cd, Cr, Co, Cu, Hg, Mn, Ni, Pb, Zn and As are mobilized after fire with increased concentrations in soil and water resources and this might pose a risk to human health and ecosystems. Climate change may increase the intensity, frequency and areal extend of fire events and hence increase the metal concentrations and their potential health impacts. This paper reviews post-fire (wild fire) mobility of metals in soil common in contaminated forest ecosystems. The human and ecological health risks of these metals are also considered. © 2017, Springer International Publishing Switzerland