Effect of enrichment on chemical properties of MSW compost

Iqbal, Muhammad Khalid; Shafiq, Tahira; Hussain, Anwar; Ahmed, Khurshed

doi:10.1016/j.biortech.2010.02.105

Cited by 43 publications

(28 citation statements)

References 25 publications

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“…This process conform the maturity and stability of compost by the decomposition of non-humic into humic substances and the concentration of HA was more than FA in all trials of present study. These results are also in lined with those of Iqbal et al (2010b).…”

Section: Second Stage For C/n Optimizationsupporting

confidence: 82%

“…Periodically, about 100 g of samples was removed from all trials at days 0,7,14,21,28,35,42,49,63 and 77 for physical and chemical analyses of compost. Samples were dried at 75°C and passed through 2-mm sieve according to Iqbal et al (2010b).…”

Section: Methodsmentioning

confidence: 99%

“…The metabolism of protein enhances the concentration of ammonia due to microbial activities and its reduction was due to volatilization of gaseous ammonia having the alkaline pH of compost. However, the major contribution of the removal of the NH 4 -N shows the nitrification (Iqbal et al 2010b). The conversion of ammonia into nitrates by the action of nitrifying bacteria is the final sink of nitrogen during composting.…”

Section: Second Stage For C/n Optimizationmentioning

confidence: 99%

“…The changes in C/N ratio give an indication of nitrogen availability for biological degradation of organic waste, and decline with time has been widely reported as an indicator of compost stability and maturity because microorganism used this carbon as energy source and nitrogen for building cell structure (Iqbal et al 2010b). The variation in C/N with time is shown in Fig.…”

Section: Second Stage For C/n Optimizationmentioning

confidence: 99%

“…Pakistan as an agricultural country needs high quantity of organic fertilizers due to inflation in fertilizers prices and to improve crop yield and maintain nutrient status of soil (Iqbal et al 2010b). Fresh and immature waste is unsuitable for direct application to land, may inhibit seed germination, reduce plant growth or cause phytotoxicity to plants due to incomplete biodegradation of organic matter (Gao et al 2010).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Optimization of process parameters for kitchen waste composting by response surface methodology

Iqbal

Nadeem

Sherazi

et al. 2014

Int. J. Environ. Sci. Technol.

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The optimization of process parameters for decomposition of kitchen waste into mature, stable compost was investigated using response surface methodology (RSM). RSM and central composite designs were applied to evaluate and optimize the key factors namely fly ash, bulking agent for moisture optimization and temperature, inoculum size and lime concentration for C/N optimization, which affect the stability of compost. Moisture and C/N ratio were selected as response variables. The experimental data of response variables were fitted into quadratic polynomial model using the multiple regression analysis and found it was statistically significant quadratic model. Box-Behnken design under RSM was used to optimize their interaction between bulking agent (40 %) and fly ash (15 %) has significant effect on moisture optimization and temperature (35°C), lime (3 %), and inoculum size (10 %) were the best for C/N ratio optimization and compost maturity. These optimized conditions were used and recorded the 50 % moisture reduction, and 8.43 C/N was achieved; indicates the stable and mature compost in minimum time. A significant correlation was also found between C/N ratio, humic acid, fulvic acid and degree of polymerization during compost formation. It was fleetingly concluded that optimization of compost parameters promote the decomposition rate and humification process.

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Section: Second Stage For C/n Optimizationsupporting

confidence: 82%

Section: Methodsmentioning

confidence: 99%

Section: Second Stage For C/n Optimizationmentioning

confidence: 99%

Section: Second Stage For C/n Optimizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimization of process parameters for kitchen waste composting by response surface methodology

Iqbal

Nadeem

Sherazi

et al. 2014

Int. J. Environ. Sci. Technol.

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Statistical Optimization to Model Ammonia Removal During Co‐Composting of Pulp/Paper Mill Sludge and Corn Wastes

Aycan

Turan

2016

CLEAN Soil Air Water

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This work presents an effective way to remove ammonium from compost using corn wastes. The study examined the role of experimental factors on the removal of ammonium using a full factor experimental design. The experimental factors and their related levels selected were as follows: Material type (corn cob and corn husk), ratio (10 and 25%), moisture (50 and 70%), and finally duration (30 and 60 days). The results were evaluated with an ANOVA test. A regression model that took into account the significant main and interaction effects was suggested. According to the optimization algorithm, the optimum levels were corn cob, 25% ratio, 50% moisture, and 60-day duration, with a removal efficiency of 91.84%. The proposed procedure is simple to implement and cost-effective.Abbreviations: FFED, full factor experimental design. 1572

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Influence of Ligneous Bulking Agents on the Complexation of Heavy Metals to Humic Substances Formed in Pig Manure Composting

Zhang

et al. 2019

Bull Environ Contam Toxicol

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Effect of enrichment on chemical properties of MSW compost

Cited by 43 publications

References 25 publications

Optimization of process parameters for kitchen waste composting by response surface methodology

Optimization of process parameters for kitchen waste composting by response surface methodology

Statistical Optimization to Model Ammonia Removal During Co‐Composting of Pulp/Paper Mill Sludge and Corn Wastes

Influence of Ligneous Bulking Agents on the Complexation of Heavy Metals to Humic Substances Formed in Pig Manure Composting

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