scholarly journals Dynamic Behavior of Endocrine Disrupting Chemicals in Domestic Wastewater Treatment Facility (Gappei-shori Johkasou)

2004 ◽  
Vol 40 (4) ◽  
pp. 143-151 ◽  
Author(s):  
HIROSHI OGAWA ◽  
AYAKO HOJO ◽  
NAOYUKI MIYATA ◽  
KEISUKE IWAHORI
Keyword(s):  
Wastewater Treatment ◽  
Dynamic Behavior ◽  
Endocrine Disrupting Chemicals ◽  
Domestic Wastewater ◽  
Treatment Facility ◽  
Wastewater Treatment Facility ◽  
Domestic Wastewater Treatment ◽  
Endocrine Disrupting

Natural Attenuation of Endocrine Disrupting Chemicals in On-Site Domestic Wastewater Treatment Systems

2009 ◽  
Vol 6 (3) ◽  
pp. 102170 ◽  
Author(s):  
Laurence Gill ◽  
Bruce Misstear ◽  
Paul Johnston ◽  
Niall O’Luanaigh ◽  
H. Barthelemy ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Natural Attenuation ◽  
Endocrine Disrupting Chemicals ◽  
Domestic Wastewater ◽  
Domestic Wastewater Treatment ◽  
Endocrine Disrupting ◽  
Wastewater Treatment Systems

scholarly journals Kinetics of nutrient removal in an on-site domestic wastewater treatment facility

2018 ◽  
Vol 147 ◽  
pp. 04004 ◽  
Author(s):  
Va Vandith ◽  
Ahmad Soleh Setiyawan ◽  
Prayatni Soewondo ◽  
Pom Bophann ◽  
Hardjono
Keyword(s):  
Wastewater Treatment ◽  
Nutrient Removal ◽  
Domestic Wastewater ◽  
Second Order ◽  
Office Building ◽  
Treatment Facility ◽  
Initial Concentration ◽  
Domestic Wastewater Treatment ◽  
Kinetics Of ◽  
One Way Anova

Domestic wastewater from office building has not been maintained well especially in the areas where the sewerage system is unavailable. The aims of this research were to investigate the performance and kinetics of nutrient removal in an on-site domestic wastewater treatment facility which consists of anaerobic and aerobic systems for treating wastewater from office building. The experimental data obtained from the variations of COD:N:P ratio 250:28:2.5, 350:38:2.9, 450:47:3.3, and 600:60:3.7 with three different HRT 48h, 24h, and 12h. A One-way ANOVA was performed to investigate the effects of HRT and initial concentration of TN and TP on the performance of nutrient removal. In order to obtain the kinetic coefficients, First Order, Second Order and Stover-Kincannon Models were employed. The results showed that maximum TN and TP removal efficiency were 56% and 86%, respectively. The results of one-way ANOVA showed that HRT and initial concentration of TN and TP gave the significant effects on nutrient removal (p < 0.05). Second Order and Stover-Kincannon Models were found to be more appropriate models for prediction of TN removal in this facility. Controlling HRT and C: N: P ratio may keep good performance of nutrient removal in this facility.

AN APPROACH ON ATTACHED GROWTH PROCESS FOR DOMESTIC WASTEWATER TREATMENT

2014 ◽  
Vol 13 (1) ◽  
pp. 145-152 ◽  
Author(s):  
Alireza Valipour ◽  
Seyed Masoud Taghvaei ◽  
Venkatraman Kalyan Raman ◽  
Gagik Badalians Gholikandi ◽  
Shervin Jamshidi ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Growth Process ◽  
Domestic Wastewater ◽  
Attached Growth ◽  
Domestic Wastewater Treatment

scholarly journals Pollutant-Removing Biofilter Strains Associated with High Ammonia and Hydrogen Sulfide Removal Rate in a Livestock Wastewater Treatment Facility

2021 ◽  
Vol 13 (13) ◽  
pp. 7358
Author(s):  
Dong-Hyun Kim ◽  
Hyun-Sik Yun ◽  
Young-Saeng Kim ◽  
Jong-Guk Kim
Keyword(s):  
Wastewater Treatment ◽  
Hydrogen Sulfide ◽  
Microbial Community ◽  
Microbial Communities ◽  
Illumina Miseq ◽  
Illumina Miseq Sequencing ◽  
Miseq Sequencing ◽  
Treatment Facility ◽  
Livestock Wastewater ◽  
Wastewater Treatment Facility

This study analyzed the microbial community metagenomically to determine the cause of the functionality of a livestock wastewater treatment facility that can effectively remove pollutants, such as ammonia and hydrogen sulfide. Illumina MiSeq sequencing was used in analyzing the composition and structure of the microbial community, and the 16S rRNA gene was used. Through Illumina MiSeq sequencing, information such as diversity indicators as well as the composition and structure of microbial communities present in the livestock wastewater treatment facility were obtained, and differences between microbial communities present in the investigated samples were compared. The number of reads, operational taxonomic units, and species richness were lower in influent sample (NLF), where the wastewater enters, than in effluent sample (NL), in which treated wastewater is found. This difference was greater in June 2019 than in January 2020, and the removal rates of ammonia (86.93%) and hydrogen sulfide (99.72%) were also higher in June 2019. In both areas, the community composition was similar in January 2020, whereas the influent sample (NLF) and effluent sample (NL) areas in June 2019 were dominated by Proteobacteria (76.23%) and Firmicutes (67.13%), respectively. Oleiphilaceae (40.89%) and Thioalkalibacteraceae (12.91%), which are related to ammonia and hydrogen sulfide removal, respectively, were identified in influent sample (NLF) in June 2019. They were more abundant in June 2019 than in January 2020. Therefore, the functionality of the livestock wastewater treatment facility was affected by characteristics, including the composition of the microbial community. Compared to Illumina MiSeq sequencing, fewer species were isolated and identified in both areas using culture-based methods, suggesting Illumina MiSeq sequencing as a powerful tool to determine the relevance of microbial communities for pollutant removal.

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