Utilization of Composts for Adsorption of Methylene Blue from Aqueous Solutions: Kinetics and Equilibrium Studies

Utilization of composts as low-cost adsorbents is an important application in the field of environmental remediation, but these materials have not yet been extensively used for dye removal. In this work, we have studied the characteristics of adsorption of methylene blue onto two composts (a municipal solid waste compost and a pine bark compost). Kinetics and equilibrium batch experiments testing the influence of adsorbent particle size, solution pH and ionic strength were performed. Both composts have a high adsorption capacity for methylene blue, similar to other low-cost adsorbents. Kinetics of adsorption followed a pseudo-first-order model, with maximum adsorption reached after a contact time of two hours. Equilibrium adsorption followed a Langmuir model in general. Reduction of particle size only increased adsorption slightly for composted pine bark. Increase in ionic strength had no effect on adsorption by municipal solid waste compost, but increased adsorption by composted pine bark. Modification of pH between 5 and 7 did not influence adsorption in any case. Overall, the results suggest that electrostatic interaction between the cationic dye and the anionic functional groups in the composts is not the only mechanism involved in adsorption. In conclusion, the use of composts for dye removal is a likely application, in particular for those composts presenting limitations for agricultural use.

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Utilization of Mixed Municipal Solid Waste Compost as a Soilless Potting Component in Greenhouse Production of Four Floricultural Crops

Journal of Environmental Horticulture ◽

10.24266/0738-2898-26.2.75 ◽

2008 ◽

Vol 26 (2) ◽

pp. 75-79

Author(s):

Wenliang Lu ◽

Xiaomei Yang ◽

Jeff L. Sibley ◽

Charles H. Gilliam ◽

James S. Bannon ◽

...

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Growth Index ◽

Dry Weight ◽

Pine Bark ◽

Greenhouse Production ◽

Visual Rating ◽

Municipal Solid Waste Compost ◽

Spad Value ◽

The Impact

Abstract Mixed municipal solid waste compost (MSWC) was evaluated as a soilless potting mix component for greenhouse production using four floricultural crops: dusty miller (Senecio cineraria), hybrid petunia (Petunia × hybrida), Japanese holly fern (Cyrtomium falcatum), and begonia (Begonia × semperflorens-cultorum). Dusty miller and petunia plugs were transplanted into 36-cell trays filled with MSWC based substrates and grown for two months. Petunia only grew well in the blend with the lowest MSWC ratio (33%), while dusty miller grew well in all MSWC blends. Japanese holly fern and begonia liners were transplanted into 15 cm (6 in) azalea pots and grown for 12 weeks in five substrates: 100% pine bark (PB), 3: 1 PB: MSWC, 1: 1 PB: MSWC, 1: 3 PB: MSWC, and commercially available Fafard 3B Mix. In addition to substrate, a controlled-release fertilizer was applied at two rates to form a two-way factorial completely randomized design. Replacement of PB with MSWC resulted at least equal plant quality and growth of begonia in the aspects of growth index, leaf greenness (SPAD value), flower number, visual rating, and shoot fresh and dry weight. For Japanese holly fern, replacement of PB with MSWC resulted in a lower visual rating, but without other negative responses in plant. For the four greenhouse crops tested, plant growth and quality were seldom negatively affected at low ratios of MSWC (25 to 33%o). However, our studies indicate the impact of blending traditional pine bark with higher than 50% MSWC is species specific.

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Use of Processed Biofuel Crops for Nursery Substrates

Journal of Environmental Horticulture ◽

10.24266/0738-2898-28.3.129 ◽

2010 ◽

Vol 28 (3) ◽

pp. 129-134 ◽

Cited By ~ 4

Author(s):

James Altland

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Pine Bark ◽

Peat Moss ◽

Municipal Solid Waste Compost ◽

Sphagnum Peat ◽

Sphagnum Peat Moss ◽

Biofuel Crops ◽

Air Space ◽

Container Capacity

Abstract Loblolly pine (Pinus taeda) bark availability has decreased, causing shortages in inventory and increased prices for pine bark substrates. One potential alternative to pine bark is the use of biofuel or biomass crops that can be grown locally, harvested, and processed into a suitable substrate. The objective of this research was to assess the suitability of several biofuel crops as alternatives to pine bark in nursery substrates using annual vinca (Catharanthus roseus) as a model crop. Across two experiments, switchgrass (Panicum virgatum), willow (Salix spp.), corn (Zea mays) stover, and giant miscanthus (Miscanthus ×giganteus) were processed through a hammermill equipped with a 0.95 cm (0.375 in) screen. Pine bark was used as a control. Substrate materials were used either alone, amended with 20% (v/v) sphagnum peat moss, or amended with 20% (v/v) sphagnum peat moss and 10% (v/v) municipal solid waste compost. Biofuel-based substrates tended to have greater air space and less container capacity than pine bark substrate. Amending with peat moss, or peat moss and municipal solid waste compost reduced air space and increased container capacity of all substrates. Substrate pH of biofuel-based substrates was higher than pine bark substrates, and was neutral to slightly alkaline. Amending with peat moss reduced pH of biofuel substrates to levels considered more ideal for annual vinca growth. Foliar calcium, magnesium, and iron levels were low across all treatments, although visual foliar deficiency symptoms were not apparent. Shoot growth was greatest in switchgrass and pine bark substrates. Plant growth differed among biofuel and pine bark substrates; however, all plants were considered marketable at the conclusion of the experiment. Modification of chemical and physical properties for each substrate type will be necessary.

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Municipal solid waste compost as a novel sorbent for antimony(V): adsorption and release trials at acidic pH

Environmental Science and Pollution Research ◽

10.1007/s11356-017-0933-y ◽

2017 ◽

Vol 25 (6) ◽

pp. 5603-5615 ◽

Cited By ~ 11

Author(s):

Stefania Diquattro ◽

Giovanni Garau ◽

Gian Paolo Lauro ◽

Margherita Silvetti ◽

Salvatore Deiana ◽

...

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Acidic Ph ◽

Municipal Solid Waste Compost ◽

Adsorption And Release

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Achievability of Municipal Solid Waste Compost for Tea Cultivation with Special Reference to Cadmium

CLEAN - Soil Air Water ◽

10.1002/clen.201800093 ◽

2018 ◽

Vol 46 (6) ◽

pp. 1800093

Author(s):

Tanmoy Karak ◽

Ornella Abollino ◽

Ranjit K. Paul ◽

Amrit K. Dutta ◽

Agnese Giacomino ◽

...

Keyword(s):

Municipal Solid Waste ◽

Special Reference ◽

Solid Waste ◽

Municipal Solid Waste Compost

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Influence of Municipal Solid Waste Compost on Soil Properties and Plant Reestablishment in Peri-Urban Environments

Chilean journal of agricultural research ◽

10.4067/s0718-58392010000300012 ◽

2010 ◽

Vol 70 (3) ◽

Cited By ~ 7

Author(s):

Gabriela Civeira

Keyword(s):

Municipal Solid Waste ◽

Soil Properties ◽

Solid Waste ◽

Urban Environments ◽

Municipal Solid Waste Compost

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Numerical Analysis of Size Reduction of Municipal Solid Waste Particles on the Traveling Grate of a Waste-to-Energy Combustion Chamber

14th Annual North American Waste-to-Energy Conference ◽

10.1115/nawtec14-3193 ◽

2006 ◽

Cited By ~ 2

Author(s):

Masato Nakamura ◽

Marco J. Castaldi ◽

Nickolas J. Themelis

Keyword(s):

Particle Size ◽

Municipal Solid Waste ◽

Combustion Chamber ◽

Solid Waste ◽

Size Reduction ◽

Waste To Energy ◽

Size Change ◽

Model Combining ◽

Shrinking Core ◽

Waste Particles

The size reduction of municipal solid waste (MSW) particles on the reverse acting traveling grate of a waste-to-energy (WTE) combustion chamber was estimated by means of a numerical model combining the particle size distributions (PSD) of MSW and combustion residues and the Shrinking Core Model (SCM). This new integrated model was used to simulate the particle behavior on the grate. During their travel on the moving grate, the sizes of the particles are reduced by combustion, breakage, and compaction. This study shows the calculation of the particle size change using this model and comparison of the numerically derived PSDs of MSW and ash particles with experimental data. There is good agreement between calculated and measured values.

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Use of Municipal Solid Waste Incineration Bottom Ash in Adsorption of Heavy Metals

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.474-476.1099 ◽

2011 ◽

Vol 474-476 ◽

pp. 1099-1102

Author(s):

Hai Ying Zhang ◽

Yi Zheng ◽

Hong Tao Hu ◽

Jing Yu Qi

Keyword(s):

Heavy Metals ◽

Particle Size ◽

Municipal Solid Waste ◽

Solid Waste ◽

Residence Time ◽

Bottom Ash ◽

Waste Incineration ◽

Synthetic Wastewater ◽

High Porosity ◽

Municipal Solid Waste Incineration

Bottom ash from municipal solid waste incineration (MSWI) has been previously suggested as an adsorbent for removing heavy metals from wastewater due to its high porosity and large surface area. In this study the adsorption characteristics of heavy metals were investigated using various particle sizes of MSWI bottom ash. The adsorption experiment was conducted using synthetic wastewater containing Cu, Zn, Pb and Cd as a function of residence time, initial pH, ash dosage and particle size, respectively. The adsorption rate increased with decreasing particle size and with increasing residence time. Through the above analysis, this work proved that bottom ash was effective in adsorbing the four heavy metals.

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