Sewage Sludge-Derived Materials as Efficient Adsorbents for Removal of Hydrogen Sulfide

Bagreev, Andrey; Bashkova, Svetlana; Locke, David C.; Bandosz, Teresa J.

doi:10.1021/es001678h

Cited by 171 publications

(172 citation statements)

References 25 publications

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“…So attractive sorption capacities of the activated carbons not subjected to demineralisation are most probably a consequence of chemisorption of NO 2 and H 2 S on the adsorbents surface, that occurs according to the mechanism proposed earlier by Bandosz research group (Pietrzak and Bandosz 2007;Bagreev et al 2001), assuming formation of the corresponding nitrates and sulphides, in the reaction between the molecules of the adsorbed gas and metal oxides present in the mineral substance. However, a detail explanation of this issue needs further studies.…”

Section: Sorption Abilities Of the Activated Carbons Toward Nitrogen mentioning

confidence: 93%

The effect of mineral matter on the physicochemical and sorption properties of brown coal-based activated carbons

Nowicki

2015

Adsorption

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A series of new carbonaceous adsorbents has been obtained by means of direct and physical activation of Polish brown coal, characterised by high mineral matter content. The influence of activation procedure on the porous structure development, acidic and basic surface groups generation as well as the sorptive properties of the adsorbents prepared toward liquid and gas pollutants was tested. Additionally the effect of mineral matter presence on the physicochemical and sorption properties of materials prepared was studied. The final products were micro/mesoporous activated carbons of medium developed surface area ranging from 407 to 674 m 2 /g, showing strongly basic or intermediate acidic-basic character of the surface. The results obtained during this study showed that direct and physical activation of low quality brown coal led to activated carbons with very good sorption capacity both toward gas contamination of acidic character (especially nitrogen dioxide) as well as toward methylene blue and inorganic pollutants of molecules of size similar to that of iodine molecules. It was also proved that demineralization of prepared activated carbons by hydrochloric acid significantly reduced their ability to toxic gases sorption, but simultaneously increased the efficiency of removing impurities from the liquid phase.

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Section: Sorption Abilities Of the Activated Carbons Toward Nitrogen mentioning

confidence: 93%

The effect of mineral matter on the physicochemical and sorption properties of brown coal-based activated carbons

Nowicki

2015

Adsorption

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“…Zinc oxide has been used for removal of H 2 S in drilling fluids (Davidson 2004;Sayyadnejad et al 2008) and different gaseous media (Bagreev et al 2001;Wang et al 2008) during which the process produced water (H 2 O) and an insoluble zinc sulfide (ZnS) as shown in the reaction below (Eq. 1):…”

Section: Discussionmentioning

confidence: 99%

Mixing nanoparticles with swine manure to reduce hydrogen sulfide and ammonia emissions

Alvarado

Predicala

Asis

2014

Int. J. Environ. Sci. Technol.

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Addition of nanoparticles into swine manure was investigated as a possible measure to mitigate the emissions of hydrogen sulfide and ammonia from swine production facilities. Bench-scale experiments were conducted, followed by room-scale tests in controlled environment chambers closely representing actual swine production rooms. Among the 12 types of commercial nanoparticles tested, zinc oxide nanoparticles achieved significant reduction in gaseous hydrogen sulfide and ammonia concentrations when mixed into the manure at a rate of 3 g zinc oxide nanoparticles per liter of manure slurry. Room-scale experiments showed that mean initial hydrogen sulfide concentrations of 596, 57 and 39 ppm measured at the pit, animal and human levels within each chamber, respectively, were reduced significantly to 5, 1 and 1 ppm, respectively, after the addition of zinc oxide nanoparticles into the manure. Effectiveness of the treatment was persistent in maintaining low hydrogen sulfide level up to 15 days after treatment application. Pig performance and manure nutrient properties were not adversely affected by the application of zinc oxide nanoparticles.

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“…The authors recommend the following additional research goals: (1) determine whether impregnating activated carbon with metallic salts of iron, chromium, and vanadium improves COS adsorption capacity; such impregnation has been shown in a previous study to improve adsorption of diethyl sulfide; 21 (2) determine whether introduction of a small sidestream of ozone improves COS adsorption capacity; ozone has been shown in a previous study to improve adsorption capacity of H 2 S; 22 (3) test the activated carbon adsorption systems with higher concentrations of COS to better represent industrial conditions, as opposed to wastewater treatment facility conditions; and (4) test other ratios of H 2 S/COS concentrations.…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9] A few studies on adsorption of methyl mercaptans, dimethyl disulfide (DMDS), dimethyl sulfide, and carbon disulfide have also been conducted; 10 -15 however, COS has not been studied. COS is not only an odor-causing compound, but it is also listed in the Clean Air Act as a hazardous air pollutant, having a potential of exploding under various mixing ratios with air.…”

Section: Introductionmentioning

confidence: 99%

Removal of Carbonyl Sulfide Using Activated Carbon Adsorption

Sattler

Rosenberk

2006

Journal of the Air & Waste Management Association

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Wastewater treatment plant odors are caused by compounds such as hydrogen sulfide (H 2 S), methyl mercaptans, and carbonyl sulfide (COS). One of the most efficient odor control processes is activated carbon adsorption; however, very few studies have been conducted on COS adsorption. COS is not only an odor causing compound but is also listed in the Clean Air Act as a hazardous air pollutant. Objectives of this study were to determine the following: (1) the adsorption capacity of 3 different carbons for COS removal; (2) the impact of relative humidity (RH) on COS adsorption; (3) the extent of competitive adsorption of COS in the presence of H 2 S; and (4) whether ammonia injection would increase COS adsorption capacity. Vapor phase react (VPR; reactivated), BPL (bituminous coal-based), and Centaur (physically modified to enhance H 2 S adsorption) carbons manufactured by Calgon Carbon Corp. were tested in three laboratory-scale columns, 6 in. in depth and 1 in. in diameter. Inlet COS concentrations varied from 35 to 49 ppm v (86 -120 mg/m 3 ). RHs of 17%, 30%, 50%, and 90% were tested. For competitive adsorption studies, H 2 S was tested at 60 ppm v , with COS at 30 ppm v . COS, RH, H 2 S, and ammonia concentrations were measured using an International Sensor Technology Model IQ-350 solid state sensor, Cole-Parmer humidity stick, Interscan Corp. 1000 series portable analyzer, and Drager Accuro ammonia sensor, respectively. It was found that the adsorption capacity of Centaur carbon for COS was higher than the other two carbons, regardless of RH. As humidity increased, the percentage of decrease in adsorption capacity of Centaur carbon, however, was greater than the other two carbons. The carbon adsorption capacity for COS decreased in proportion to the percentage of H 2 S in the gas stream. More adsorption sites appear to be available to H 2 S, a smaller molecule. Ammonia, which has been found to increase H 2 S adsorption capacity, did not increase the capacity for COS.

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Sewage Sludge-Derived Materials as Efficient Adsorbents for Removal of Hydrogen Sulfide

Cited by 171 publications

References 25 publications

The effect of mineral matter on the physicochemical and sorption properties of brown coal-based activated carbons

The effect of mineral matter on the physicochemical and sorption properties of brown coal-based activated carbons

Mixing nanoparticles with swine manure to reduce hydrogen sulfide and ammonia emissions

Removal of Carbonyl Sulfide Using Activated Carbon Adsorption

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