Water is a vital element for living organisms, as well as for the ecological balance of the environment.
water resources are contaminated by human activities continuously. The industrial activity
are direct methods to combat water pollution. The industrial activity of release of metals, non-metals, neproreagirovavšij compounds and byproducts of the water resources. Pollutants mainly include dyes, chlorine compounds, cadmium, fluoride, ketones, and other compounds. Works are conducted on
the degradation of pollutants and develop appropriate methods to remove these polluting compounds.
This experiment consists of the preparation of powder cellulose from agricultural products and its application cadmium removal of material. The paper describes the development of microcrystalline cellulose from peanut shells in the digestion process. The raw material is digested in a reactor with steam jacket
Treatment with alkali, bleaching and drying. The dried powder is characterized by its properties, and
The size of the particles is estimated. Target dry powder is used for periodic adsorption studies on degradation cadmium compounds and kinetic studies. From the research of the adsorption parameters such as pH, effects concentration, adsorption isotherms and kinetics of adsorption are measured.
INTRODUCTION
The availability of clean water has become a major issue in all countries due to the depletion of
water resources branch, on the population and the lack of environmental rule. The waste water can be treated by various methods, such as electrodialysis, distillation, water sediment filters and chemical agents, reverse osmosis, active carbon and Ion Exchange [1.2]. Technique of adsorption method is often used in industry. Metal cleaning industrial waste streams, Galvanic baths, mining, metallurgical, printed circuit boards,pulp and paper, fertilizer, petroleum, wood preservation and the excessive use of agrochemicals call water and soil pollution. Adsorbents are either chemicals or compounds developed from biological materials. Some of the biological material used as adsorbents sawdust, corn kernels, rice husks and sugarcane .
Cadmium is one of water-polluting substances that are released from the various industrial activity. Cadmium batteries are widely used in industry, coating and plating industries and plastic industry. Naturally a very large amount of cadmium released into the environment, 25000 tonnes/year. About half of the cadmium entered the River through the weathering of rocks and some cadmium enters the air through forest fires and volcanic eruptions. The rest of cadmium goes through human activities such as the production of . Various chemical absorbents are used to remove cadmium, but many of the works were made using biological adsorbents for the removal of cadmium. Angove, etc. have investigated adsorption and CD on the kaolin materials. They showed that two different mechanisms of adsorption of work depending on the pH and materials. Adsorption of cadmium ions and phenol from aqueous solutions on chestnut (Castanea Sativa) shell has been explored . The concentration of cadmium ion source (20-60-100
mg/l) and the concentration of phenol (0.01-0.255-0.5 mg/l), temperature (10/25/40-25-40° c for cadmium and 10-35-60° c for phenol) and pH (5.5-7.0-8.5 Cd ions and 2.5-6.0-9.5 for phenol) use the
a predefined quantity of adsorbent. The results showed the best conditions for high-cadmium ions
and removal of phenol in the experimental range variables studied were the natural pH (Approx. 5.5) at 25° c for cadmium ions and 60° c for phenol. Under them the conditions of adsorption equilibrium of simulated Freundlich isotherms for cadmium ions and izotermoj Langmuir for phenol. Biosorbciâ of cadmium (II) ions to dry biomass Glaucescens Sargassum, a Brown seaweed, was studied in a batch mode [8]. Langmuir and
Freundlich isotherm models were used for mathematical description of biosorbcii were estimated equilibrium constants and data model. The capacity of Biosorbciâ found that the pH of the solution depends on the maximum absorption of cadmium 84.7 mg/g was observed at pH 5, Depending on the model of Langmuir. Equilibrium studies for cadmium biosorbcii with olive The stones as a sorbent material at temperatures ranging between 25 and 80° c were also evaluated . the three models are often used in the literature-Langmuir, Freundlich, Redlich-Peterson- were examined to describe the equilibrium data. Experimental results are consistent with the model Langmuir For most of the tested temperatures.