Citation: Rajkumar K (2016) $Q(YDOXDWLRQRI%LRORJLFDO$SSURDFKIRUWKH(IÀXHQW7UHDWPHQWRI3DSHU%RDUGV,QGXVWU\$Q(FRQRPLF3HUVSHFWLYH J %LRUHPHGLDW%LRGHJUDG 366 GRL 366
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soluble or exchangeable faction, then they tend to be easily moved and dispersed, whereas metals associated with the silicate matrix are not easily separated or mobilized [42-44]. Table 5 also shows that the high amount of K, Al, Fe, Mg and Na with a very small amount of Be, As, Se, Cd and Mo. The high organic matter content and low trace metal and organic pollutants in paper board industry sludge suggest that these residuals may provide a valuable resource for soil amendments. Economic study Based on the above results, effluent treatment plant economic study for 4000 m 3 /d wastewater treatment plant for the paper board industry was conducted. The maximum design parameters of wastewater are illustrated in Table 3. Figure 2 shows the schematic block flow diagram of the effluent treatment system. The fixed capital cost was Rs. 700 lakhs and operation cost (not added RO plant) such as chemicals, energy and maintenance was Rs. 180 lakhs/Annual. The total operation costs were chemical 8%, energy 80% and maintenance 12% respectively. Conclusions This study has demonstrated the practical feasibility of biological oxidation during treatment of a paper board wastewater and the conclusions can be summarized as follows:
• The result obtained indicated that biological oxidation has a great potential in treating paper board industry wastewater stable operation and removal performance at where, conventional aeration treatment provided a high reduction of TSS 92.10%, BOD 93.70%, COD 88.33% respectively. • The paper board industry is adopting zero liquid effluent technologies to reduce freshwater consumption. This implies closure of water circuits and the progressive accumulation of pollutants that must be removed before water reuse. Based on the result biological wastewater treatment plant pollutants removal too high and zero liquid effluent technologies without RO operation. But the TDS concentration increased due to the entire treated effluent recirculation in the process. The TDS concentration reducing purpose using RO plant. • Solid waste from ETP sludge contains significant amount of inorganic compounds, calcium and aluminium is the highest one, silicon and magnesium also present in measurable amount and other macro and micro elements are observed. This sludge disposed in a safe manner in the way of primary sludge sun dry board manufacturing and secondary biological one of the raw material for composting materials. • The total operation cost played a very important role in determining
J Bioremediat Biodegrad ISSN: 2155-6199 JBRBD, an open access journal
Volume 7 • Issue 5 • 1000366
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