By Yogesh C. Sharma
Water pollutants is subject of huge and customary challenge through the international. This e-book offers the implications and information from examine and adsorption experiments conducted at the removing of nickel and chromium (as good as different metals) from aqueous recommendations utilizing transformed silica sand.
Read or Download A Guide to the Economic Removal of Metals from Aqueous Solutions PDF
Similar water quality & treatment books
Jacques G. Ganoulis Engineering chance research of Water pollutants chances and Fuzzy units query: How am i able to top overview the environmental effect and locate the dangers of water pollutants from wastewater disposal? resolution: In a distinct and entire approach, this ebook analyzes the questions of possibility and reliability in water caliber.
Water assets are less than possibility in lots of components of the realm. weather switch and traditional failures like earthquakes are anxious already severe events. yet an important variety of threats are posed at once by way of human interference and failings. a big subject within the e-book is the necessity for preparedness.
This booklet discusses diversified ingesting water remedy applied sciences and what contaminants every one therapy strategy can eliminate, and at what expenditures. The creation of ingesting water calls for sufficient administration. This booklet makes an attempt to fill the prevailing knowlegde hole approximately (a) water therapy applied sciences and their charges, (b) possibility overview equipment, (c) antagonistic overall healthiness results of chemical contaminants, (d) administration protocols, and ranging regulatory practices in numerous jurisdictions, and what successes are attainable regardless of small monetary outlays.
Rural Water platforms for a number of makes use of and Livelihood safeguard covers the technological, institutional, and coverage offerings for construction rural water offer structures which are sustainable from actual, fiscal, and ecological points-of-view in constructing international locations. whereas there's plentiful theoretical discourse on designing village water provide schemes as a number of use platforms, there's too little figuring out of the kind of water wishes in rural families, how they range throughout socio-economic and climatic settings, the level to which those wishes are met by means of the prevailing unmarried use water provide schemes, and what mechanisms exist to keep up unmet calls for.
- industrial water pollution control
- A guide to the formulation of water resources strategy
- Maintenance Management for Water Utilities
- Chromatography of Natural, Treated and Waste Waters
- In situ remediation engineering
- Wiley's Remediation Technologies Handbook. Major Contaminant Chemicals and Chemical Groups
Additional info for A Guide to the Economic Removal of Metals from Aqueous Solutions
9 respectively. 2 Effect of Contact Time and Initial Concentration of Cr (VI) and Ni (II) During the uptake of pollutants from wastewater by the adsorption process, the following two factors play important roles: i. initial concentration of the adsorbate in the solution, and ii. time of contact between the adsorbate and adsorbent phases. A rapid transport of adsorbate species from the bulk to the surface of the adsorbent cuts short the equilibrium period. The time taken to attain equilibrium is important in order to predict the efficiency and feasibility of an adsorbent for its use in water pollution control.
20gm of silica sand (modified as well as raw) was added. After these samples were left for 48 hours, the final pH of the solutions was measured. Then graphs were plotted between pH final versus pH initial. The point of intersection of these two curves has been recorded as pHzpc of raw and modified silica sand. 9 respectively. 2 Effect of Contact Time and Initial Concentration of Cr (VI) and Ni (II) During the uptake of pollutants from wastewater by the adsorption process, the following two factors play important roles: i.
It is found from the kinetic studies that the adsorption rate of Cr (VI) is faster for the initial 250 min and then it decreases in the later part of adsorption. The equilibrium time for Cr (VI) adsorption on sawdust is obtained as 1050 min. The equilibrium data are best fitted with the Langmuir isotherm model which confirms the monolayer adsorption of Cr (VI) onto the sawdust. 52 m g / g , which is a comparatively good adsorption capacity. The saturated adsorption is regenerated by an acid and base treatment.