Paper Titles
Environmental Contamination of Heavy Metals and Effects of Sediment Bacteria on Cadmium Speciation in the Vicinity of the Hwacheon Mine
p.438
Anodic Degradation of Toxic Aromatic Compound in the Flow Through Cell with Carbon Fiber Electrode
p.445
A Study of Biodegradable Superabsorbent Materials Based on Acrylonitrile Grafted Sodium Alginate
p.450
Fabrication of an Anode-Supported Sofc with a Sol-Gel Coating Method for a Mixed-Gas Fuel Cell
p.455
A Study on Organics and Nutrients Removal Mechanisms in Livestock Wastewater Treatment Using EGSB
p.462
Effectiveness of Yttria Filters for the Removal of Volatile Ruthenium at High Temperatures
p.470
Radioactivity Analysis of DUPIC Fuel Fabrication Process According to Burn-Up and Cooling Time
p.475
3-D Kirchhoff Migration of GPR Data to Image the Inside of a Stone Pagoda
p.481
Generalized Additive Model of Air Pollution to Daily Mortality
p.487

A Study on Organics and Nutrients Removal Mechanisms in Livestock Wastewater Treatment Using EGSB

Article Preview

Abstract:

An advanced way of treating livestock wastewater made use of both Autothermal Thermophilic Aerobic Digestion (ATAD), as a pre-step, and Expanded Granular Sludge Blanket (EGSB), as the post-step. As a result, the chemical oxygen demand (COD) concentration flowing out of the post step, including the EGSB, was 89mg/ℓ, while the suspended solid (SS) concentration was 28mg/ℓ, and the total nitrogen (TN) and total phosphorus (TP) concentrations were 62mg/ℓ and 5.7mg/ℓ, respectively. To maintain a high temperature in the ATAD reactor without external heating, the characteristics of influent were found to be very critical. The temperature of the ATAD reactor was significantly elevated only when the influent TSS was more 50,000mg/ℓ. The EGSB reactor was fed with increasingly higher livestock wastewater loading rates up to 6kg chemical oxygen demand (COD)/ m3/day and an average of 84.7% of the COD and 85.4% of the SS were removed in EGSB. Biogas was generated on the 47th day of operation in the EGSB after startup and its production increased at a rapid rate. The methane percentage within the biogas was initially low but it also increased rapidly, up to 73%. When the HRTs were 0.5-3 days, the COD removal efficiency was over 80%, but did show a increase as the HRT increased to 3 days.

You might also be interested in these eBooks
On the Convergence of Bio-, Information-, Enrivonmental-, Energy-, Space- and Nano-Technolgies View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 277-279)

Pages:

462-469

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.277-279.462

Citation:

Cite this paper

Online since:

January 2005

Authors:

Young Shin Lee

Keywords:

ATAD, Biogas, EGSB, Livestock Wastewater

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] Andy de Smul, et al, Effect of COD to Sulphate Ratio and Temperature in ExpendedGranular-Sludge-Blanket Reactors for Sulphate Reduction. ( Process Biochemistry, 1999).

DOI: 10.1016/s0032-9592(98)00109-5

Google Scholar

[2] Delia Teresa Sponza, Enhancement of Granule Formation and Sludge Retainment for Tetrachloroethylene Removal in an Upflow Anaerobic Sludge Blanket Reactor. (Advances in Environmental Research, 2003).

DOI: 10.1016/s1093-0191(02)00012-6

Google Scholar

[3] Fang G.G. P, et al, Performance and Granule Characteristics of UASB Process Treating Wastewater With Hydrolyzed Proteins. (Water Sci. Technol, 1994).

Google Scholar

[4] Jewell, W.J., Kabrick, R.M., Autoheated Aerobic Thermophilic Digestion with Aeration.: Jour. WPCF Vol. 3 (1980), p.53.

Google Scholar

[5] Kim C.W., et al, Optimization of Operating Mode For Sequencing Batch Reactor (SBR) Treating Piggery Wastwater with High Nitrogen. (IWA Int. Syposium, 2002).

Google Scholar

[6] Lee, Y.S., Shin, H.J., Study on Autoheated Aerobic Digestion of Waste Sludge.: Jour. KSEE, Vol. 3 (1988), p.10.

Google Scholar

[7] Lettinga, G., et al, Upflow Sludge Blanket Process. (Proc. 3th Int'l Symp. on Anaerobic Digstion, 1983).

Google Scholar

[8] Lucas Seghezzo, et al, A Review: The Anaerobic Treatment of Sewage in UASB and EGSB Reactors. (Bioresource Technology, 1998).

DOI: 10.1016/s0960-8524(98)00046-7

Google Scholar

[9] Matsch, L.C., Drnevich, R.F., Autothermal Aerobic Digestion.: Jour. WPCF Vol. 2, (1977), p.42.

Google Scholar

[10] Maria Alcina Pereira, et al, Molecular Monitoring of Microbial Diversity in Expended Granular Sludge Bed(EGSB) Reactors Treating Oleic Acid, (FEMS Microbiology Ecology, 2002). Title of Publication (to be inserted by the publisher).

DOI: 10.1111/j.1574-6941.2002.tb00970.x

Google Scholar

[11] Pereira M. A., et al, Operation of an Anaerobic Filter and an EGSB Reactor for the treatment of an Oleic Acid-based Effluent: Influence of Inoculum quality. (Process Biochemistry, 2002).

DOI: 10.1016/s0032-9592(01)00311-9

Google Scholar

[12] Sang hong chon, et al, Dominant Growth of Bacillus spp. in the Aerobic Night Soil Digestion Tanks and Their Biochemical Characteristics.: Jour. Water Evrionmental Vol. 18 (1995).

Google Scholar

[13] Timothy et al., Thermophilic Aerobic Biological Wastewater Treatment. (Wat. Res., 1999).

Google Scholar

[14] Yan Y.G., et al, Characterisation of the Granulation Process during UASB Start-up. (Water Res., 1997).

Google Scholar