Use of Column for the adsorption of Ni(II) and Cu(II) from aqueous solution using Acasia arabica tree bark substrate

Salt of various heavy metals and other potentially dangerous are being discharged into the aquatic environment. Water containing vital concentration of some of heavy metal ions are harmful to human being, animal as well as aquatic organisms. The toxicity of some heavy metal ions, even at the trace level has been recognised with respect to the public health for many years. Metals such as Mercury, Lead, Cadmium, Copper and Chromium are under this category. Many metals have been evaluated as harmful to aquatic life above certain toxicity level. Any type of pollution brings about noticeable changes in the physiochemical parameters of the water, therby making it unsuitable for some beneficial uses. Thus, pollution causes changes in almost in the parameter. When increasing the pace of industrialisation along with population explosion, urbanisation and green revolution are reflected in varying degree of purity of water, soil and air. Majority of industries are water based and considerable volume of waste water is discharged to the environment either untreated or inadequately treated leading to the problem of surface and ground water pollution. The capital cost and operating waste water treatment system are rising on one hand and on the other there is a pressing demand for the treatment of waste water generated by increase residential and industrial development.

Adsorption of Co2+ from Aqueous Solution Using G Low Cost Adsorbent

Concentration of water supplies with metals is constant area of concern naturally an international. The challenge to remediate hazardous metals containing waste stream from present formal mining operation, industrial sites and ground water is immersed. Adsorption has proved to be an accelerate way to treat industrial waste effluents. The heavy metals renders the water unsuitable for drinking and also higher toxic to human being. Removal of these material is therefore essential. The studies pertaining to the use of inexpensive agro based adsorbents, such as tree bark, saw dust, Corn cob, straw and fly ashes for heavy metals ions has been investigated using Mangifeara indica substrate through batch adsorption studies. Result obtained are quite encouraging, batch adsorption studies have shown that removal of metal ions is dependent upon process parameters like contact time, temperature, metal ions concentration, dosage and pH. The maximum removal of Co2+ to the extent of has been achieved at pH 4 to 6 in 30 min in the concentration range 30 to 90 mg/liter. The use of packed column adsorption has been investigated at the optimum condition, to study the feasibility of the process s for application in small scale industries.