One-Year Operational Data for Wiconisco Wastewater Treatment Plant Illustrating Process Improvements and Carbon Footprint Reduction with SolarBee® Circulators

2011 ◽  
Vol 6 (2) ◽  
Author(s):  
Archis Ambulkar ◽  
Stephen N. Zeller ◽  
Douglas Klinger
Keyword(s):  
Wastewater Treatment ◽  
Carbon Footprint ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Process Improvements ◽  
One Year ◽  
Operational Data ◽  
Carbon Footprint Reduction

One-Year Operational Data for Wiconisco Wastewater Treatment Plant Illustrating Process Improvements and Carbon Footprint Reduction with SolarBee® Circulators

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Archis Ambulkar ◽  
Stephen N. Zeller ◽  
Douglas Klinger
Keyword(s):  
Wastewater Treatment ◽  
Carbon Footprint ◽  
Wastewater Treatment Plant ◽  
Energy Savings ◽  
Treatment Plant ◽  
Electricity Consumption ◽  
Cost Savings ◽  
Residual Chlorine ◽  
Process Improvements ◽  
Carbon Footprint Reduction

In 2008, Brinjac Engineering Inc., retained municipal engineer for Wiconisco Township wastewater treatment plant (WWTP), assisted the Township with obtaining Growing Greener II Innovative Wastewater Treatment Grant Award for $84,000 to reduce treatment plant carbon footprint. With this prime objective and considering other aerators related operational issues, the plant was upgraded with new solar circulators/aerators in March'09, with one (1) solar unit installed in Lagoon # 1 and two units (2) in Lagoon # 2. Four (4) of the existing eight (8) aerators were continued to use as backup for these solar units. With these upgrades, the WWTP process changed from aerated lagoons to a system resembling towards an advanced facultative system. System performance was analyzed prior to and after upgrades. During the one (1) year of WWTP operations after upgrades (Mar'09–Feb'10 period), it was in full compliance with NPDES effluent permit. The WWTP influent data indicated that hydraulic and organic loadings remained consistent prior to and after upgrades (Jan'08–Feb'10 period). Average daily effluent BOD5 and TSS were 5.4 mg/l and 29.2 mg/l respectively before upgrades, whereas they were 6.5 mg/l and 18.6 mg/l respectively after upgrades indicating improvements in TSS removal. Average monthly fecal coliform between Jan'08–Mar'09 period was 16 mg/l (prior to upgrades) whereas it averaged at 5.5 mg/l after upgrades reflecting better coliform treatment. Other parameters including D.O., pH and residual chlorine remained within permit limits. Sludge depths in lagoons # 1 and # 2 decreased by approx. 2.50 ft and 0.50 ft respectively after upgrades. In 2009, the SolarBee® units reduced algae sufficient enough that no biological additives were needed for its control, resulting in an annual saving of more than $5,000. Apart from process improvements, monthly electricity consumption and electric bills at WWTP decreased by about 47% and 32% respectively after upgrades. Some additional cost savings were compensated due to increase in unit electric costs. During Jan'08–Feb'10 period, Chapter 94 Reports did not indicate for any significant modifications at WWTP other than Solar system upgrades that would result in major changes to electricity consumption. Hence, energy savings were considered to be directly related to these upgrades. With energy savings, carbon footprint of WWTP decreased by 47%. Process improvements at the WWTP were consistent with experiences from previous case studies. Overall, solar units provided efficient circulation and mixing in lagoons while maintaining aerobic conditions necessary for treatment and served as a suitable option for process improvements, minimizing energy costs, carbon footprint reduction and meeting permit limits.

Experience with Two-Stage Activated Sludge Plants for Industrial Wastewaters in Korea

1992 ◽  
Vol 25 (4-5) ◽  
pp. 427-428 ◽  
Author(s):  
R. Schulze-Rettmer ◽  
S. S. Kim ◽  
S. S. Son
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plant ◽  
Pilot Plant ◽  
Treatment Plant ◽  
Activated Sludge Process ◽  
Two Stage ◽  
Industrial Wastewaters ◽  
Textile Dyeing ◽  
One Year

The two-stage activated sludge process (AB-process, i.e. adsorption activated sludge process) invented by Boehnke was successfully applied to several municipal and industrial wastewaters in Korea. The first large wastewater treatment plant for the combined effluents of 22 textile dyeing companies was constructed in Taegu and started operation in 1989. Two years earlier pilot plant runs were performed. The AB-process proved to be superior to any other activated sludge process. BOD was reduced from 1200 mg/l down to 24 mg/l. In the meantime in Korea several further AB-process treatment plants were constructed, the overall planning and constructing period being not longer than one year.

scholarly journals Genes encoding tetracycline resistance in a full-scale municipal wastewater treatment plant investigated during one year

2009 ◽  
Vol 8 (2) ◽  
pp. 247-256 ◽  
Author(s):  
Stefan Börjesson ◽  
Ann Mattsson ◽  
Per-Eric Lindgren
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Tetracycline Resistance ◽  
Full Scale ◽  
Municipal Wastewater Treatment ◽  
Genes Encoding ◽  
Total Dna ◽  
One Year

Tetracycline-resistant bacteria and genes encoding tetracycline resistance are common in anthropogenic environments. We studied how wastewater treatment affects the prevalence and concentration of two genes, tetA and tetB, that encode resistance to tetracycline. Using real-time polymerase chain reaction (PCR) we analysed wastewater samples collected monthly for one year at eight key-sites in a full-scale municipal wastewater treatment plant (WWTP). We detected tetA and tetB at each sampling site and the concentration of both genes, expressed per wastewater volume or per total-DNA, decreased over the treatment process. The reduction of tetA and tetB was partly the result of the sedimentation process. The ratio of tetA and tetB, respectively, to total DNA was lower in or after the biological processes. Taken together our data show that tetracycline resistance genes occur throughout the WWTP, and that the concentrations are reduced under conventional operational strategies.

Seasonal profiles of human noroviruses and indicator bacteria in a wastewater treatment plant in Tokyo, Japan

2006 ◽  
Vol 54 (11-12) ◽  
pp. 301-308 ◽  
Author(s):  
E. Haramoto ◽  
H. Katayama ◽  
K. Oguma ◽  
H. Yamashita ◽  
A. Tajima ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Genotype 1 ◽  
Human Noroviruses ◽  
Total Coliforms ◽  
Epidemic Season ◽  
Genotype 2 ◽  
One Year ◽  
Final Effluent

The seasonal profiles of microorganisms in raw sewage, secondary-treated sewage, and final effluent at a wastewater treatment plant in Tokyo, Japan, were quantitatively determined each month for one year, from July 2003 to June 2004. Human noroviruses, which were determined by real-time PCR, in raw sewage varied from 0.17–260 copies/mL for genotype 1 and from 2.4–1900 copies/mL for genotype 2, showing much higher values in winter, the epidemic season. The concentration of total coliforms, Escherichia coli, or F-specific phages in raw sewage was almost constant throughout the year. Human noroviruses of genotype 2 were removed most effectively (3.69 log10 on average) at the wastewater treatment plant, followed by E. coli (3.37 log10), total coliforms (3.05 log10), F-specific phages (2.81 log10), and human noroviruses of genotype 1 (2.27 log10). The removal ratio of human noroviruses was almost constant, independent of the initial concentration of the viruses in raw sewage, which led to the increasing concentration of human noroviruses in final effluent in winter. None of the tested bacteria was judged to be a reliable indicator of human noroviruses in final effluent.

Operation of the Soreq Wastewater Treatment Plant with a Single-Stage Nitrification-Denitrification Activated Sludge System

1989 ◽  
Vol 21 (10-11) ◽  
pp. 1359-1372 ◽  
Author(s):  
G. Arueste ◽  
D. Farchill ◽  
M. Goldstein ◽  
Y. Gruber
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Biological Process ◽  
Treatment Plant ◽  
Primary Treatment ◽  
Single Stage ◽  
First Year ◽  
Carbonaceous Matter ◽  
Stage System ◽  
Operational Data

The Soreq Biological wastewater Treatment Plant has been in operation almost one and a half years. The treatment performance and operational data obtained during the first year of full-scale operation, following the running-in period, are detailed in this paper as four consecutive seasonal operating periods. The results achieved have demonstrated the efficiency, in carbonaceous matter removal and the nitrification-denitrification processes, of the single-stage system, operated without primary treatment. The influence of various operating parameters on the efficiency of the biological process and on the sludge settleability have been analysed. Two anaerobic tanks, preceding the anoxic zone of the biological reactors, were brought into operation at the end of March 1988. The influence of their addition to the biological process train has also been included herein.

Feasibility analysis for reduction of carbon footprint in a wastewater treatment plant

2020 ◽  
Vol 271 ◽  
pp. 122526 ◽  
Author(s):  
Sina Borzooei ◽  
Giuseppe Campo ◽  
Alberto Cerutti ◽  
Lorenza Meucci ◽  
Deborah Panepinto ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Carbon Footprint ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Feasibility Analysis

Nitrifying bacteria in the influent to a wastewater treatment plant - influence and importance on nitrifying capacity

1996 ◽  
Vol 34 (1-2) ◽  
pp. 75-82 ◽  
Author(s):  
B. Sandén ◽  
B. Björlenius ◽  
C. Grunditz ◽  
G. Dalhammar
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Major Part ◽  
Treatment Plant ◽  
Competitive Elisa ◽  
Nitrifying Bacteria ◽  
Most Probable Number ◽  
Probable Number ◽  
Biological Unit ◽  
One Year

Cells of Nitrobacter sp. were enumerated in the influent to Bromma wastewater treatment plant using monoclonal antibodies in a competitive ELISA. By comparing this method with the most probable number technique we conclude that the immunological method is much more relevant for determining Nitrobacter sp. The amount of Nitrobacter sp. cells in the influent was measured once every second month during one year. Examinations concerning variations during one week and one day respectively were conducted. Finally a mass balance was constructed describing the amount of nitrifiers at different sites in the plant. The analysis showed that the amount of Nitrobacter sp. cells varies during the year but no obvious pattern could be observed. At the middle of an average week higher amounts were recorded. The major part of the nitrifiers was found in the biological unit and most of them have entered the wastewater treatment plant by the influent. Only small quantities were found in water from secondary clarifiers, filters and different sludge streams. 90% of the incoming cells of Nitrobacter sp. in the influent were captured in the plant. 5% of the bacteria were lost with the effluent and another 5% with the digested dry solids.

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