The Role of Diatomite Particles in the Activated Sludge System for Treating Coal Gasification Wastewater

Abstract

Abstract: Diatomite is a kind of natural low-cost mineral material.It has a number of unique physical properties and has been widely used as an adsorbent in wastewater treatment.This study was conducted to investigate the aerobic biodegradation of coal gasification wastewater with and without diatomite addition.Experimental results indicated that diatomite added in the activated sludge system could promote the biomass and also enhance the performance of the sludge settling.The average mixed-liquor volatile suspended solids(MLVSS) is increased from 4055 mg·L^-1 to 4518 mg·L^-1 and the average settling volume(SV) are changed only from 45.9% to 47.1%.Diatomite additive could enhance the efficiency of chemical oxygen demand(COD) and total phenols removal from the wastewater.The COD removal increased from 73.3% to near 80% and the total phenols removal increased from 81.4% to 85.8%.The mechanisms of the increase of biomass and pollutants removal may correlates to the improvement of bioavailability and sludge settlement characteristics by diatomite added.Micrograph of the sludge in the diatomite-activated sludge system indicated that the diatomite added could be the carrier of the microbe and also affect the biomass and pollutant removal.

Key words: diatomite, phenols, coal gasification wastewater, activated sludge

摘要： Diatomite is a kind of natural low-cost mineral material.It has a number of unique physical properties and has been widely used as an adsorbent in wastewater treatment.This study was conducted to investigate the aerobic biodegradation of coal gasification wastewater with and without diatomite addition.Experimental results indicated that diatomite added in the activated sludge system could promote the biomass and also enhance the performance of the sludge settling.The average mixed-liquor volatile suspended solids(MLVSS) is increased from 4055 mg·L^-1 to 4518 mg·L^-1 and the average settling volume(SV) are changed only from 45.9% to 47.1%.Diatomite additive could enhance the efficiency of chemical oxygen demand(COD) and total phenols removal from the wastewater.The COD removal increased from 73.3% to near 80% and the total phenols removal increased from 81.4% to 85.8%.The mechanisms of the increase of biomass and pollutants removal may correlates to the improvement of bioavailability and sludge settlement characteristics by diatomite added.Micrograph of the sludge in the diatomite-activated sludge system indicated that the diatomite added could be the carrier of the microbe and also affect the biomass and pollutant removal.

关键词: diatomite, phenols, coal gasification wastewater, activated sludge

ZHANG Wenqi, RAO Pinhua, ZHANG Hui, XU Jingli. The Role of Diatomite Particles in the Activated Sludge System for Treating Coal Gasification Wastewater[J]. , 2009, 17(1): 167-170.

张文启, 饶品华, 张辉, 徐菁利. The Role of Diatomite Particles in the Activated Sludge System for Treating Coal Gasification Wastewater[J]. , 2009, 17(1): 167-170.

References

1 Suidan, M.T., Strubler, C.E., Kao, S.W., “Treatment of coal gasification wastewater with anaerobic filter technology”, J. WPCF, 55,1263-1270 (1983).
2 Luthy, R.G., Tallon, J.T., “Biological treatment of hygas coal gasification wastewater”, Water Research, 14, 1269-1275 (1980).
3 Yu, H.Q., Gu, G.W., Song, L.P., “Post-treatment of effluent from coke-plant wastewater treatment system in sequencing batch reactors”, J. Env. Eng., 123, 305-308 (1997).
4 Lee, M.W., Park, J.M., “Biological nitrogen removal from coke plant wastewater with external carbon addition”, Water Env. Res., 70,1090-1095 (1998).
5 Sublette, K.L., Snider, E.H., Sylvester, N.D., “A review of the mechanism of powdered activated carbon enhancement of activated sludge treatment”, Water Research, 16, 1075-1082 (1982).
6 Specchia, V., Ruggeri, B., Gianetto , A., “Mechanisms of activated carbon bio-removal”, Chem. Eng. Commun., 68, 99-117 (1988).
7 Marquez, M.C., Costa, C., “Biomass concentration in PACT process”, Water Research, 30, 2079-2085 (1996).
8 Pala, A., Tokat, E., “Color removal from cotton textile industry wastewater in an activated sludge system with various additives”, Water Research, 36, 2920-2925 (2002).
9 Al-Degs, Y., Khraisheh, M.A.M., Tutunji, M.F., “Sorption of lead ions on diatomite and manganese oxides modified diatomite”, Water Research, 35, 3724-3728 (2001).
10 Srinivasan, K.R., Fogler, S.H., “Use of inorgano-organo clays in the removal of priority pollutants from industrial wastewaters”, Clay and Clay Minerals, 38, 227-286 (1990).
11 Cho, B.H., Chino, H., Tsuji, H., Kunito, T., Nagaoka, K., Otsuka, S., Yamashita, L., Matsumoto S., Oyaizu, H., “Laboratory-scale bioremediation of oil contaminated soil of Kuwait with soil amendment materials”, Chemosphere, 35, 1599-1611 (1997).
12 Vieira, M.J., Melo, L.F., “Effect of clay particles on the behaviour of bio-films formed by pseudomonas fluorescens”, Water Sci. Technol.,32, 45-52 (1995).
13 Pereira, M.O., Vieira, M.J., Melo, L.F., “The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control”, Water Environ. Res., 74, 235-241 (2002).
14 Erdem, E.,Cölge en, G., Donat, R., “The removal of textile dyes by diatomite earth”, J. Colloid Interface Sci., 282, 314-319 (2005).
15 Osmanlioglu, A.E., “Natural diatomite process for removal of radioactivity from liquid waste”, Appl. Radiation and Isotopes, 65, 17-20 (2007).
16 Jang, M., Min, S.H., Kim, T.H., Park, J.K., “Removal of arsenite and arsenate using hydrous ferric oxide incorporated into naturally occurring porous diatomite”, Environ. Sci. Technol., 40, 1636-1643 (2006).
17 Wu, J.L., Yang, Y.S., Lin, J.H., “Advanced tertiary treatment of municipal wastewater using raw and modified diatomite”, J. Hazard. Mater., 127, 196-203 (2005).
18 Zhang, W.Q., Ma, J., Yang, S.D., Zhang, T., Li, Y.F., “Pretreatment of coal gasification wastewater by acidification demulsion”, Chin. J. Chem. Eng., 14, 398-401 (2006).
19 Al-Ghouti, M.A., Khraisheh, M.A.M., Allen, S.J., Ahmad, M.N., “The removal of dyes from textile wastewater: A study of the physical characteristics and adsorption mechanisms of diatomaceous earth”, J. Environ. Manag., 69, 229-238 (2003).
20 Pollock, J., “Treatment of contaminated soils”, WO Pat., 00129 (1997).
21 Zhao, Y., Cao, D., Liu, L., Jin, W., “Municipal wastewaterwater treatment by moving bed-biofilm reactor with diatomaceous earth as carriers”, Water Environ. Res., 78, 392-396 (2006).
22 Jin, W., Zhao, Y.P., Xu, Z.X., Gao, T.Y., “Treatment of municipal wastewater using combined bio-diatomaceous earth”, J. Tongji Univ. Nat. Sci., 33, 1626-1629 (2005).
23 Spain, J.C., Van Veld, P., Monti, C.A., Pritchard, P.H., Cripe, C.R., “Comparison of p-nitro-phenol biodegradation in field and laboratory test systems”, Appl. Environ. Microbiol., 48, 944-950 (1984).
24 Guerin, W.F., Boyd, S.A., “Diffrential bioavailability of soil-sorbed naphthalene to two bacterial species”, Appl. Environ. Microbiol., 58,1142-1152 (1992).
25 Laorl, Y., Strom, P.F., Farmer, W.J., “Bioavailability of enanthrene sorbed to mineral-associated humic acid”, Wat. Res., 33, 1719-1729 (1999).
26 Zhang, W.Q., Ma, J., Zhang, L.Q., Qiu, L.P., “Effects of diatomite additives on coal gasification wastewater treatment”, Modern Chemical Industry, 25, 154-157 (2005). (in Chinese)
27 Widjaja, T., Miyata, T., Nakano, Y., Nishijima, W., Okada, M., “Adsorption capacity of powdered activated carbon for 3,5-dichlorophenol in activated sludge”, Chemosphere, 57, 1219-1224 (2004).

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