EVALUATION OF ALTERNATIVE SEWERS AS WASTEWATER PRE-TREATMENT FACILITIES

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

EBRAHIMI RAVIZ A.R.; AMINI RAD H.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Modares Civil Engineering journal Year:2016 | Volume:16 | Issue:2 Page(s): 1-8

Download Full-Text

Persian Verion

View:

1,298

Download:

Cites:

Information Journal Paper

Title

EVALUATION OF ALTERNATIVE SEWERS AS WASTEWATER PRE-TREATMENT FACILITIES

Author(s)

EBRAHIMI RAVIZ A.R. | AMINI RAD H. | Issue Writer Certificate

Keywords

REACTIONQ2

COLLECTION NETWORKSQ2

WASTEWATERQ3

MICROORGANISMQ2

BIOFILMQ2

Abstract

In this research an aerobic biological transformation of organic matter in small diameter gravity slope WASTEWATER collection system is evaluated. A sewer network reactor at pilot scale consists of 15 meters length of PVC with 0.1 m diameter, two storage tanks, recirculation pump and an adjustable slope facility was designed and built. Formation of attached growth of MICROORGANISM on the inner surface of PVC pipe was made through a plastic net arrangement. Due to the variation of hydraulic mean diameter, contact area with flowing WASTEWATER was ranged from 1.88 to 3.77 m2 (half or full). The synthetic WASTEWATER with similar characteristics of municipal WASTEWATER and settled activated sludge from Yasreb WASTEWATER treatment plant in Qaemshahr City, was used at startup and final stage of this investigation.In order to monitor bio-film attachment rate in the reactor, two P.V.C square plates with dimensions of 10*10 cm2 were positioned vertically in the direction flow of WASTEWATER. The reactor was operated under aerobic conditions and following parameters such as HRT, TEMP, BOD, COD, Do, TN and NH3-N and NO3-N were measured on daily basis. And also BIOFILM characteristics such as thickness density and surface density were both monitored throughout the investigation, too.Biofilm formation was an irregular shape with thickness of 3-4.7 mm and the density and surface density were 55 mg Ts/cm-3 and between 22.3 and 33.1 m-2 respectively. The concentration of the suspended biomass was varied from 10-15 mg/l at optimum COD removal Oxygen uptake rate was varied as the BIOFILM attachment in the reactor was varied along length of reactor. The optimum rate of removal in COD and BOD concentration were 59% and 54% respectively. By increasing the COD loading rate by 70 %, removal rate of COD reduced only by 9%. Due to high COD concentration in reactor, the nitrification process was limited. In order to nitrify the WASTEWATER, a longer HRT is required.

Cites

No record.

References

No record.

Cite

APA: Copy

EBRAHIMI RAVIZ, A.R., & AMINI RAD, H.. (2016). EVALUATION OF ALTERNATIVE SEWERS AS WASTEWATER PRE-TREATMENT FACILITIES. MODARES CIVIL ENGINEERING JOURNAL, 16(2), 1-8. SID. https://sid.ir/paper/256843/en

Vancouver: Copy

EBRAHIMI RAVIZ A.R., AMINI RAD H.. EVALUATION OF ALTERNATIVE SEWERS AS WASTEWATER PRE-TREATMENT FACILITIES. MODARES CIVIL ENGINEERING JOURNAL[Internet]. 2016;16(2):1-8. Available from: https://sid.ir/paper/256843/en

IEEE: Copy

A.R. EBRAHIMI RAVIZ, and H. AMINI RAD, “EVALUATION OF ALTERNATIVE SEWERS AS WASTEWATER PRE-TREATMENT FACILITIES,” MODARES CIVIL ENGINEERING JOURNAL, vol. 16, no. 2, pp. 1–8, 2016, [Online]. Available: https://sid.ir/paper/256843/en

Related Journal Papers