Compatibility test and steps for compatibility test for adsorbent to adsorb various dyes .

Compatibility test for adsorbent to adsorb various dyes .

                                     Compatibility test is the procedure through which we can find whether the given adsorbent can adsorb the adsorbate well or not.Compatibility testing is a method or a test which is employed to seek out the compatibility of the given solute with respect to its solvent. Basically it is the test encompasses the property of the solute and check out the reactivity with its solvent.If a solute has granular structure/porous body will be more compatible with its solvent.Adsorption is a efficient and low cost technique used for the purification of waste water which is responsible for the contamination of water.Many textile and other industries using various kinds of dyes e.g methylene blue,ethylene blue,bromophenol,alizarin red, alizarin yellow,methyl orange, methyl red and many many more .All these dyes have different compatibilities with low cost biomass adsorbents as banana peel ,sago waste,peanut shell, tea waste, husks etc.To get the efficient results first check the compatibility and then use adsorbent for purification of waste water.

Steps for compatibility test:

   For Compatibility testing steps are followings;

1.      Firstly prepare the stock solution of the dye (methylene blue/ ethylene blue) i.e., in a volumetric flask dissolved 1000mg of weighted amount of dye into 1000ml of distilled water to make 1000 ppm stock solution. From stock solution pippet out 10ml and added 90ml of water in it to make 100 ppm solution.

2.      Fixed the lambda max.λ_max (maximum wavelength) of the dye and determine the absorbance of the blank solution i.e., 100ppm through spectrophotometer(1100-visible).

3.       Passed the fixed amount of adsorbent dose i.e.,1g and let allow the solution to stand for an hour.

4.       After an hour maintained pH of the solution and filter out the solution.

5.        Now note down the after absorbance at the λ _max (maximum wavelength) of the dye.

6.         Compare the before and after absorbance of the solutions.

7.          After absorbance should be less than before absorbance. This is the key point of the compatibility testing.

8.         If the value of after absorbance less than before absorbance then adsorbent is compatible with dye. Lesser the after absorbance more compatible will be the adsorbent.

    Hence compatibility test is determined