Production of Liquid Organic Fertilizer Through Anaerobic Digestion of Grass Clippings

Mostafazadeh-Fard, Saman; Samani, Zohrab; Bandini, Paola

doi:10.1007/s12649-017-0095-7

Cited by 12 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

Section: Liquid Organic Fertilizer and Clinoptilolite Zeolitementioning

confidence: 99%

“…The experimental LOF used in this study was produced using a patented technology consisting of hydrolysis and acidification processes through accelerated bio-leaching of green plant waste (Mostafazadeh-Fard et al 2019;Samani 2010). In a pilot production experiment, 29 kg of the grass clippings was anaerobically digested with 36 kg of potable (tap) water inside an anaerobic bioreactor (Mostafazadeh-Fard et al 2019). The leachate was re-circulated daily for 14 days, after which the leachate was drained and analyzed for nutrients (nitrogen, phosphorous, and potassium), using a HACH DR6000 spectrophotometer, and other micronutrients and organic matter (see Table 1).…”

Section: Liquid Organic Fertilizer and Clinoptilolite Zeolitementioning

confidence: 99%

“…In 2017, approximately 35 million tons of yard trimmings and grass clipping were disposed as municipal solid waste (MSW) in the United States of America (USA), which represents 13.1% of all MSW produced in the country (US EPA 2019). In 2017, an alternative method for composting was introduced to produce liquid organic fertilizer (LOF) through a patented technology (Mostafazadeh-Fard et al 2019;Samani 2010). This technology uses hydrolysis and acidification processes through an accelerated bio-leaching of yard trimmings and grass clipping waste (Mostafazadeh-Fard et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…In 2017, an alternative method for composting was introduced to produce liquid organic fertilizer (LOF) through a patented technology (Mostafazadeh-Fard et al 2019;Samani 2010). This technology uses hydrolysis and acidification processes through an accelerated bio-leaching of yard trimmings and grass clipping waste (Mostafazadeh-Fard et al 2019). The process produces a biodegradable liquid product that has nutrient and organic content comparable to manure and compost and is made from landscape grass waste or green waste generated from greenhouses, green roofs, and urban green spaces (Mostafazadeh-Fard et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…This technology uses hydrolysis and acidification processes through an accelerated bio-leaching of yard trimmings and grass clipping waste (Mostafazadeh-Fard et al 2019). The process produces a biodegradable liquid product that has nutrient and organic content comparable to manure and compost and is made from landscape grass waste or green waste generated from greenhouses, green roofs, and urban green spaces (Mostafazadeh-Fard et al 2019). This product could be studied as a cost-effective, environmentally friendly alternative to additives such as hydrogels and compost in greenhouses, green roofs, and urban green spaces.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Effect of Liquid Organic Fertilizer and Zeolite on Plant Available Water Content of Sand and Growth of Perennial Ryegrass (Lolium perenne)

Mostafazadeh-Fard

Samani

Bandini

et al. 2020

J Soil Sci Plant Nutr

Self Cite

View full text Add to dashboard Cite

The use of high permeability soils with low plant available water content (PAWC) for cultivation of plants in the greenhouses, green roofs, and urban green spaces requires frequent irrigation, which leads to high water consumption. This paper presents an innovative method consisting of combined use of sustainably produced liquid organic fertilizer (LOF) extracted from landscape grass waste and clinoptilolite zeolite for improving PAWC of sand. The study included four substrates, namely sand (S), sand with 20% zeolite (SZ), sand treated with LOF (SLOF), and sand with 20% zeolite treated with LOF (SZLOF), to evaluate the effect of LOF and zeolite on PAWC of sand. The effect of three growth medium treatments, sand that received LOF fertilizer (LOF1), sand with 20% zeolite that received LOF fertilizer (ZLOF), and sand that received inorganic fertilizer (CF1), through a greenhouse experiment during two growing seasons (fall and summer) on productivity of perennial ryegrass (Lolium perenne) and properties of its growth medium was also evaluated. Combined use of LOF and zeolite increased the volumetric water content of sand by 29, 154, and 220% at 0, 30, and 100 centibar (CB) suctions compared to S substrate, respectively, and increased the dry biomass yield (DBY) of perennial ryegrass by 42% in ZLOF during the summer season compared to CF1 growth medium. Additionally, the content of organic matter, nitrogen, and phosphorus increased by 25, 120, and 84%, respectively, for ZLOF treatment compared to 33, 40, and 53% for LOF1 treatment. The outcomes of the experiments demonstrate the feasibility of using LOF and zeolite to improve the PAWC of sand and DBY of perennial ryegrass.

show abstract

Section: Liquid Organic Fertilizer and Clinoptilolite Zeolitementioning

confidence: 99%

Section: Liquid Organic Fertilizer and Clinoptilolite Zeolitementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of Liquid Organic Fertilizer and Zeolite on Plant Available Water Content of Sand and Growth of Perennial Ryegrass (Lolium perenne)

Mostafazadeh-Fard

Samani

Bandini

et al. 2020

J Soil Sci Plant Nutr

Self Cite

View full text Add to dashboard Cite

show abstract

Recycling of Multiple Organic Solid Wastes into Biogas via Anaerobic Digestion

Hajinajaf

Das

Patra

et al. 2022

Production of Biofuels and Chemicals From Sustainable Recycling of Organic Solid Waste

View full text Add to dashboard Cite

Dual role of grass clippings as buffering agent and biomass during anaerobic co-digestion with food waste

Chakraborty

Palani

Ghangrekar

et al. 2022

Clean Techn Environ Policy

View full text Add to dashboard Cite

There is a dire need to replace the chemical buffers that regulate the redox environment in single-stage anaerobic digestion (AD) of food waste (FW).Hence, the applicability of grass clippings (GC) as an eco-friendly buffering agent and biomass during the anaerobic co-digestion of FW was explored. A focus was primarily given on the effects of GC on the redox environment and acidogenesis. Concomitantly the production of volatile fatty acids, hydrogen and methane in mesophilic conditions was monitored. Organic load and substrate to inoculum ratio were kept constant in all the experiments, and no chemical buffer was used. The results revealed that GC regulated the redox environment by inhibiting rapid pH drop in the digester with 10 % GC. The addition of 2, 4, and 6 % GC promoted acidogenesis with increased production of acetic and butyric acids; whereas, 8 and 10 % GC promoted solventogenesis with ethyl alcohol production. Hydrogen generation from the experiments with GC was in the range of 27-30 % of the total biogas, which was marginally higher than from the control (25 %). Methane concentration was negligible in the biogas generated from all experiments. The acidi cation rate, VFA production/consumption rate, speci c hydrogen yield, hydrogen conversion e ciency, and volatile solid removal were maximum and minimum in the reactors with 6 and 10 % GC, respectively. From the above results, it can be concluded that the addition of GC to FW would regulate the sudden pH changes and enhance the production of value-added biochemicals, to make the process cost-effective.

show abstract

Production of Liquid Organic Fertilizer Through Anaerobic Digestion of Grass Clippings

Cited by 12 publications

References 22 publications

Effect of Liquid Organic Fertilizer and Zeolite on Plant Available Water Content of Sand and Growth of Perennial Ryegrass (Lolium perenne)

Effect of Liquid Organic Fertilizer and Zeolite on Plant Available Water Content of Sand and Growth of Perennial Ryegrass (Lolium perenne)

Recycling of Multiple Organic Solid Wastes into Biogas via Anaerobic Digestion

Dual role of grass clippings as buffering agent and biomass during anaerobic co-digestion with food waste

Contact Info

Product

Resources

About