| 项目编号: | 1511667
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| 项目名称: | Collaborative Research: GOALI: Sustainable phosphorus recovery from agricultural waste |
| 作者: | Lee Blaney
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| 承担单位: | University of Maryland Baltimore County
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| 批准年: | 2014
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| 开始日期: | 2015-07-01
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| 结束日期: | 2018-06-30
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| 资助金额: | USD228012
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Engineering - Chemical, Bioengineering, Environmental, and Transport Systems
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| 英文关键词: | poultry litter
; waste stream
; research
; objective
; phosphorus
; hfo-ple
; phosphorus release
; additional phosphorus recovery
; phosphorus product
; recovery system
; phosphorus extraction
; high recovery
; low phosphorus content
; phosphorus recovery
; research team
; high-value phosphorus-based fertilizer
; resource recovery perspective
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| 英文摘要: | 1512429 (Blaney) and 1511399 (Sengupta)
Waste streams have traditionally been considered as a source of pollutants to environmental systems. Poultry litter has been a topic of recent interest due to high nutrient loads in runoff from agricultural areas. Moving forward, a paradigm shift is needed to reconsider waste streams from a resource recovery perspective. The overall aim of this project is to investigate a hybrid technology that allows for continuous-flow treatment of poultry litter and high recovery of phosphorus. By shifting nutrient loading issues into potential resource/revenue streams, progress in reducing nutrient loads to sensitive ecosystems can be accelerated. This goal will be pursued through partnership with Triea Technologies, a company focused on agricultural sustainability.
The hypothesis of this research is that phosphorus can be sustainably recovered from concentrated poultry litter slurries using a two-phase process. This process consists of a Phosphorus Extraction and Recovery System (PEARS), which allows for phosphorus release from poultry litter and subsequent precipitation as a high-value product, and a hybrid ion exchange, Hydrated Ferric Oxide - Polymeric Ligand Exchanger (HFO-PLE) unit that polishes PEARS effluent to ensure low-phosphorus effluent. The hypothesis will be tested through study of the following specific objectives: Objective 1: Optimize and model the process chemistry for PEARS to produce struvite and potassium struvite from poultry litter. Objective 2: Achieve additional phosphorus recovery from PEARS effluent using specialty
polymeric ligand exchangers impregnated with hydrated ferric oxide. Objective 3: Determine the purity of the recovered phosphorus product and explore the sustainable reuse of extraction and regeneration solutions. Objective 4: Determine potential nutrient load reductions in the Chesapeake Bay watershed and development a start-up program for a PEARS-HFO-PLE pilot. The generation of high-value phosphorus-based fertilizers from poultry litter would be an important advancement in the environmental-agricultural field. The approach to coupling the PEARS and HFO-PLE systems will ensure process effluent has low phosphorus content. The project will leverage ongoing relationships with the Meyerhoff Scholars Programs, which primarily serves African American students, to engage and mentor undergraduate students in research. The research team will engage farmers and agricultural communities to describe the benefits of phosphorus recovery. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94076
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Lee Blaney. Collaborative Research: GOALI: Sustainable phosphorus recovery from agricultural waste. 2014-01-01.
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