Abstract
Paper Packaging Industries are manufacturing corrugated boxes or packets from test liner, Kraft liner and fluting medium using different printing inks. In current study unlimited paper packaging incorporates sort of high technology process and hence generating solid as well as liquid wastes. Subsequently further analysis and treatment was expected to be carried out. A Physico chemical characteristic of each waste was analyzed with relevant analytical tools such as AAS, pH, conductometre and titration methods. From the result metal ions such as and Hg were detected to be less than 10-4 µg/l both in solid and liquid wastes. BOD and COD were determined both in liquid raw material and liquid wastes and the result showed that BOD; 163.95, 136.5, 1050, 719.22 and 647.15mg/L in glue, starch, ink, effluent before treatment and effluent after treatment respectively. COD was determined to be 33,300, 40,200, 13,200, 1,780 and 3500mg/L in glue, starch, ink, effluent before treatment and effluent after treatment respectively. pH is 4.74 in solid and 4.3 in liquid wastes, phosphorous 2.098 and potassium 2.698 mg/kg in solid wastes. The level of TDS and TSS in effluent before treatment is 3510 and 422 mg/L respectively and 9425 and 588 mg/L in effluent after treatment; electrical conductivity is also detected to be 137.1µg/L. in solid wastes. The method of treatment was optimized to reduce elevated amount of BOD and COD. After optimization the level of contaminants COD reduced by 48.28% and BOD by 82.05%.
Highlights
From the study adhesive, flocculent and ink composed of polymers with high BOD and Chemical oxygen demand (COD)
After treatment the results indicated that most of the analyzed parameters reduced in amount except COD and total suspended solid (TSS)
In unlimited paper packaging almost filtration, coagulation and precipitation methods are in operation
Summary
Paper packaging is the method how corrugated and paper boards manufactured from different paper grades. These paper categories are Kraft liner, test liner and fluting medium. Further these products can be manufactured from bagasse, straw and wastes of different agricultural by- products. The most frequently used corrugated board package is the regular slotted container (RSC), with features that provide the most economical use of material. The boxes are shipped flat and ready to use and are used as secondary packaging. The energy required for bandage of outer and medium surface obtained from steam generated by boiler using filtrated and screened natural water for hardness and related cases [1]
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