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Develop Method for the Preparation of Stable Jute Batching Emulsion by Using Hard Water.

Md. Kamal Uddin
CSO
Chemistry Division, BJRI.

Md. Sabder Ali Khan
Former Chief Chemist of BPDB and SWCC,
K.S.A

Muhammad Mubarak Hossen
SO
Fibre Chemistry Department, Chemistry Division, BJRI.

Abstract/ Executive Summary:

The hardness is one of common impurity of natural water. An study was conducted Chemistry Division, Bangladesh Jute Research Institute during 2006-2007. on water hardness (Total hardness as well as Calcium Hardness) of Faridpur Zone by Titrimetric (Volumetric) methods. A comparative study between experimental result and the average permissible limit of hardness that is usually allowed in different textile wet processing was also carried out. The aim was to find out the content of hardness for Suggesting a remedial measure to get and indication for the suitability of water. In the present study have been found that the water contains not only Ca-hardness but also Mg-hardness which is more than Ca-hardness and pertial removal of hardness could be done by coagulation process.

Keywords: Water, Processing, Total hardness

Location: Chemistry Division, Dyeing Department, BJRI.

Start Date: 01-01-2003

End Date: 30-06-2007

Program Area: Postharvest and Agro-processing

Commodity: Jute

Objectives:

a) To find out standard method for removal of water hardness.
b) To develop method for the preparation of stable jute batching emulsion by using hard water.
c) Compilation of the result and evaluation of the report.

Methodology:

The color of water was measured by platinum- cobalt standard method. A series of standard color solutions were prepared by diluting the mother solution platinum- cobalt standard solution. Prepared standard samples having colors of 5, 10, 15 ---- upto 50 in Nessler’s tubes. As the color value of water is extremely pH dependent; the water pH was measured while color determination immediate after collection of the sample. The water under experiment was centrifuged for about 1 hour and clear supernatant water from the top was transferred to another beaker for measuring color by visual comparison of the sample with known concentration of colored solution.

Source of Information: International Journal of Sustainable Agricultural Technology. 4(5): 62-64 , October-2008 And Annual Technical Report.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 120,000.00

Total Budget (Tk.) : 120,000.00

Achievement/Findings:

The study was to identify the range of turbidity of the cited water in order to ascertain their suitability in the wet processing’s of textile industries for remedial measure. To monitor the quality of the product goods and to save the life of the industries machineries turbidity of the used water might be within the allowable limit. From the table it is evident that the turbidity is within the recommended allowable limit. Turbidity higher than the recommended allowable limit for the wet processing’s will affect the quality, texture an uniformity of finished textile products as the turbidity is caused due to the presence of large or small suspended particles of organic or inorganic matter, clay, silt, calcium carbonate, silica, vegetable matter, fats, micro-organisms, industrial waste water, weeds etc. In such cases, remedial measures are solicited and for that purpose the following precaution(s) will be useful. The materials responsible for turbidity can be removed by direct filtration but if the turbidity is too high, it cannot be very useful to remove by direct filtration only. On that circumstances coagulation will be an effective method. The most common using coagulant for coagulation is Alum where flocculation occurs within the pH range 5.7 to 7.5. After flocculation- sedimentation is to do in a settling tank and then the water is to filter passing through sand or gravel filter. The filtrate water will be useful for wet processings in the textile industries.

Knowledge Management: Journal