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Heavy Metal Remediation of Swine Lag...

Hess, Brianna Jade.

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Heavy Metal Remediation of Swine Lagoons Using Waste Biomass.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Heavy Metal Remediation of Swine Lagoons Using Waste Biomass./
作者:	Hess, Brianna Jade.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	128 p.
附註:	Source: Dissertation Abstracts International, Volume: 80-03(E), Section: B.
Contained By:	Dissertation Abstracts International80-03B(E).
標題:	Agricultural engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=11007110
ISBN:	9780438598041

Heavy Metal Remediation of Swine Lagoons Using Waste Biomass.
Hess, Brianna Jade.

Heavy Metal Remediation of Swine Lagoons Using Waste Biomass. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 128 p.

Source: Dissertation Abstracts International, Volume: 80-03(E), Section: B.

Thesis (Ph.D.)--North Carolina State University, 2018.

The production of swine is a vital contributor to the economy of the Southeastern United States. Many of the hog farms in the Southeast meet criteria defined by the Environmental Protection Agency to be considered Concentrated Animal Feeding Operations (CAFO). Swine CAFOs are required to meet standards set by the Clean Water Act to maintain minimal discharge of pollutants. Nearly all swine CAFOs utilize lagoon waste storage and treatment to comply with federal regulations.

ISBN: 9780438598041Subjects--Topical Terms:

3168406
Agricultural engineering.

Heavy Metal Remediation of Swine Lagoons Using Waste Biomass.
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245 1 0 $a Heavy Metal Remediation of Swine Lagoons Using Waste Biomass.
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300 $a 128 p.
500 $a Source: Dissertation Abstracts International, Volume: 80-03(E), Section: B.
502 $a Thesis (Ph.D.)--North Carolina State University, 2018.
520 $a The production of swine is a vital contributor to the economy of the Southeastern United States. Many of the hog farms in the Southeast meet criteria defined by the Environmental Protection Agency to be considered Concentrated Animal Feeding Operations (CAFO). Swine CAFOs are required to meet standards set by the Clean Water Act to maintain minimal discharge of pollutants. Nearly all swine CAFOs utilize lagoon waste storage and treatment to comply with federal regulations.
520 $a Due to lack of a market for manure in the Southeast, it is necessary for swine waste to be disposed of in geographically-limited areas near the farming operation. Although well-regulated for the responsible disposal of nutritive compounds, land application of wastes creates a concentration of inorganic constituents cumulative over time. As these non-degradable compounds accumulate in the soil, negative environmental impacts will become evident. Hedging off these effects will be important to the sustainability of the Southern hog industry, as hog operations are increasingly concentrated both in production density and location to small geographic regions.
520 $a It is the goal of this study was to explore waste biomass adsorption technologies as a component to the remediation of swine lagoons from heavy metal contamination. The individual objectives are as follows: (A) Survey a selection of NC waste biomasses for copper adsorption efficiency. (B) Characterize one NC waste biomass to elucidate copper adsorption mechanisms and evaluate performance in the swine lagoon matrix (C) Test the hypothesis that annealing high metal capacity adsorbents onto the waste biomass will result in a composite adsorbent material possessing a higher adsorption capacity than unmodified material. (D) Test the hypothesis that the presence of co-occurring species (that would be present in swine lagoons) will decrease the copper loading capacity of the adsorbent.
520 $a To carry out these objectives, three waste biomasses were selected and the copper loading capacity was measured for each in batch adsorption experiments (Cu 0-80 mg L-1, 72 hr, unadjusted pH). The biomass with the highest copper loading capacity was selected for further characterization of its adsorption thermodynamics (20, 30, 50°C), kinetics (0-240 hr at 20, 30, and 50°C), performance in varying solution pH conditions (controlled pH 2-9, 50% lagoon effluent initial pH 2-9) and surface characterization using scanning election microscopy- energy dispersive x-ray spectroscopy (SEM-EDS) and x-Ray photoelectron spectroscopy (XPS). Various facile surface modifications using iron oxide, manganese oxide, and peanut skin tannin resin amendments were attempted to increase copper loading capacity of the adsorbent. Copper adsorption capacity of the adsorbent was also measured in the presence of species co-occurring in swine lagoons, acetate (0-1000 mg L-1), ammonia (0-1000 mg L-1), and zinc (0-100 mg L-1).
520 $a The outcome of this study was the development of a low-cost adsorbent material for the passive removal of environmental pollutants. The intellectual merit of the proposed study was: (1) proposal of a copper adsorption mechanism onto eggshells that has not been previously suggested in literature (2) the elucidation of eggshell adsorbent efficiency and mechanisms in mixed systems containing organic species. Adsorption performance of waste biomass derived adsorbents in the presence of organic species have received very little attention as to date.
520 $a The broader impact of the research will be the development of adsorbents to mitigate the environmental impact of waste effluent from animal husbandry, agriculture, and chemical industries. This will reduce hazardous pollution and allow from the sustainable expansion of waste-effluent producing industries.
590 $a School code: 0155.
650 4 $a Agricultural engineering. $3 3168406
650 4 $a Water resources management. $3 794747
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710 2 $a North Carolina State University. $b Biological and Agricultural Engineering. $3 2103702
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790 $a 0155
791 $a Ph.D.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=11007110