Biochar from Pyrolysis of Biosolids for Nutrient Adsorption and Turfgrass Cultivation
- 1 December 2015
- journal article
- research article
- Published by Wiley in Water Environment Research
- Vol. 87 (12), 2098-2106
- https://doi.org/10.2175/106143015x14362865227391
Abstract
At water resource recovery facilities, nutrient removal is often required and energy recovery is an ever-increasing goal. Pyrolysis may be a sustainable process for handling wastewater biosolids because energy can be recovered in the py-gas and py-oil. Additionally, the biochar produced has value as a soil conditioner. The objective of this work was to determine if biochar could be used to adsorb ammonia from biosolids filtrate and subsequently be applied as a soil conditioner to improve grass growth. The maximum carrying capacity of base modified biochar for NH3-N was 5.3 mg/g. Biochar containing adsorbed ammonium and potassium was applied to laboratory planters simulating golf course putting greens to cultivate Kentucky bluegrass. Planters that contained nutrient-laden biochar proliferated at a statistically higher rate than planters that contained biosolids, unmodified biochar, peat, or no additive. Nutrient-laden biochar performed as well as commercial inorganic fertilizer with no statistical difference in growth rates. Biochar from digested biosolids successfully immobilized NH3-N from wastewater and served as a beneficial soil amendment. This process offers a means to recover and recycle nutrients from water resource recovery facilities.Keywords
Funding Information
- National Science Foundation (0968844)
This publication has 33 references indexed in Scilit:
- Innovative Strategies to Achieve Low Total Phosphorus Concentrations in High Water FlowsCritical Reviews in Environmental Science and Technology, 2013
- Study on the combined sewage sludge pyrolysis and gasification process: mass and energy balanceEnvironmental Technology, 2012
- Biochar as a Fuel: 4. Emission Behavior and Characteristics of PM1 and PM10 from the Combustion of Pulverized Biochar in a Drop-Tube FurnaceEnergy & Fuels, 2011
- Physical and Mineral‐Nutrition Properties of Sand‐Based Turfgrass Root Zones Amended with BiocharAgronomy Journal, 2010
- Sustainable biochar to mitigate global climate changeNature Communications, 2010
- Maximum use of resources present in domestic “used water”Bioresource Technology, 2009
- Adsorption of ammonia on activated carbon from aqueous solutionsEnvironmental Progress, 2008
- Thermochemical Treatment of Sewage SludgeWater and Environment Journal, 2000
- Nutrient resources for crop production in the tropicsPhilosophical Transactions Of The Royal Society B-Biological Sciences, 1997
- Pilot plant study on sewage sludge pyrolysis—IWater Research, 1982