scholarly journals Erratum to: Flavobacterium parvum sp. nov., isolated from soil polluted by sewer water

2019 ◽  
Vol 57 (12) ◽  
pp. 1132-1132
Author(s):  
Hyun Seo Lee ◽  
Woon Mo Hwang ◽  
Keunsoo Kang ◽  
Tae-Young Ahn
Keyword(s):  
Author(s):  
Masataka MURASE ◽  
Makoto TAKEDA ◽  
Takuya YAGAMI ◽  
Toshihiko TAKAHASHI ◽  
Kouhei OYA ◽  
...  

2018 ◽  
Vol 56 (8) ◽  
pp. 542-548
Author(s):  
Hyun Seo Lee ◽  
Woon Mo Hwang ◽  
Keunsoo Kang ◽  
Tae-Young Ahn
Keyword(s):  

Author(s):  
Petronella R. Hove ◽  
Daniel Mobley ◽  
Forgivemore Magunda ◽  
Douglas R. Call

Traditionally, iodine has been delivered as a solution, tablet or resin to disinfect water. In this study we evaluated the “I2 vapor infusion” (I2VP) technology which passes an airstream through a matrix containing elemental iodine (I2) to produce I2 vapor as an innovative method of iodine delivery for water disinfection. Pressured air was provided either by a compressor or hand pump. Testing was performed with water inoculated with either Gram-negative (Escherichia, Salmonella) or Gram-positive (Enterococcus) bacteria or with pre-formed Acinetobacter or Staphylococcus biofilms. Bacterial colony forming units were used to assess efficacy of the device. In distilled water all bacteria and biofilms were eliminated after brief exposures (<90 s). Culturable bacteria were also eliminated from pond and municipal sewer water, but the technology was mostly ineffective against dairy lagoon water with high turbidity and organic particulate. Longer duration infusion and higher air volumes used to overcome interference from organic matter were also associated with higher concentrations of residual iodine. We conclude that I2 vapor infusion has the potential to be useful for emergency water treatment and potentially for reducing microbiological contamination of some waste streams.


1993 ◽  
Vol 7 (2) ◽  
pp. 125-131 ◽  
Author(s):  
R. P. Narwal ◽  
Mahendra Singh ◽  
J. P. Singh ◽  
D. J. Dahiya
Keyword(s):  

Water ◽  
2017 ◽  
Vol 9 (7) ◽  
pp. 491 ◽  
Author(s):  
Jeroen Langeveld ◽  
Petra Van Daal ◽  
Remy Schilperoort ◽  
Ingmar Nopens ◽  
Tony Flameling ◽  
...  

1998 ◽  
Vol 65 (1-2) ◽  
pp. 171-173 ◽  
Author(s):  
A.P. Gupta ◽  
R.P. Narwal ◽  
R.S. Antil

1990 ◽  
Author(s):  
W. A. Flanders ◽  
N. Grahmann ◽  
G. Green
Keyword(s):  

2014 ◽  
Vol 2 (3) ◽  
Author(s):  
Aprianto Jacob ◽  
Victor D. Pijoh ◽  
G. J. P. Wahongan

Abstract: In Indonesia there are two vectors are known, the main vector Aedes aegypti and Aedes albopictus as a potential vector, Aedes spp mosquito breeding varies but generally prefer clear water reservoirs. Eggs Aedes spp mosquitoes can hatch in the sewage, although not known survival and growth of larvae into pupae and adult mosquitoes. Objective: To determine the survival and growth of Aedes spp in various types of water breeding. Methods: Four types of breeding water taken directly from the settlement, and immediately used. Eggs Aedes spp laboratory strains incubated in water media. Larvae reared until the age of 4 days. A sample of 25 healthy larvae included six types of breeding water. The number of surviving larvae, pupae and adult mosquitoes be observed and counted every day for 15 days. Data security and growth of larvae processed manually in the form of percentages and graphs. Results: Aedes spp shown to survive in water dug wells (SGL), sewage water (sewer), as well as tap water. The presence of mosquitoes living in the sewer water can last up to 15 days with the same amount of mosquitoes from the first day until the last day. This phenomenon is different in the SGL and PAM water where mosquitoes can survive until day 15, although with a small percentage. Aedes spp proved unable to survive in wastewater soap. Conclusion: Water drains were left in place and clear become breeding places for Aedes spp good to note that its presence in the cleaning mosquito breeding. Keywords: The larvae of Aedes spp, life, death, pupa, adult mosquitoes, breeding water.     Abstrak: Di Indonesia dikenal ada dua vektor, vektor utama nyamuk  Aedes aegypti dan Aedes albopictus sebagaivektor potensial, perindukan nyamuk Aedes spp sangat bervariasi tetapi umumnya lebih menyukai tempat penampungan air jernih. Telur Aedes sppdapat menetas pada air comberan,meskipun belum diketahui ketahanan hidup dan pertumbuhan larva menjadi pupa dan nyamuk dewasa. Tujuan: mengetahui ketahanan hidup dan pertumbuhan nyamuk Aedes spp pada berbagai jenis air perindukan. Metode: Empat jenis air perindukan diambil secara langsung dari pemukiman penduduk dan langsung digunakan. Telur Aedes spp strain laboratorium ditetaskan pada media air bersih. Larva dipelihara hingga berumur 4 hari. Sampel sebanyak 25 ekor larva sehat dimasukkan ke enam jenis air perindukan. Jumlah larva yang bertahan hidup, menjadi pupa dan nyamuk dewasa diamati dan dihitung setiap hari selama 15 hari. Data ketahanan dan pertumbuhan larva diolah secara manual dalam bentuk persentase dan grafik. Hasil: Nyamuk Aedes spp terbukti dapat bertahan hidup pada air sumur gali (SGL), air comberan (got), serta air PAM.  Keberadaan nyamuk hidup pada air got  mampu  bertahan  sampai 15 hari dengan jumlah nyamuk yang sama dari hari pertama sampai hari terakhir. Fenomena ini berbeda pada air SGL dan PAM dimana nyamuk mampu bertahan sampai hari ke-15 meskipun dengan persentase kecil. Nyamuk Aedes spp terbukti tidak dapat bertahan hidup pada air limbah sabun. Simpulan:  Air got yang didiamkan dan jernih menjadi tempat perindukan yang baik bagi Aedes spp sehingga keberadaannya perlu diperhatikan dalam pembersihan sarang nyamuk. Kata kunci: Larva Aedes spp, hidup, mati, pupa, nyamuk dewasa, air perindukan.


2019 ◽  
Vol 574 ◽  
pp. 1020-1028 ◽  
Author(s):  
Julia M. Ledergerber ◽  
Thibaud Maruéjouls ◽  
Peter A. Vanrolleghem

2015 ◽  
Vol 744-746 ◽  
pp. 1045-1049
Author(s):  
Kuei Hsiang Cheng ◽  
Chih Hsien Lin ◽  
Cheng Chao ◽  
Ping Chung Cheng ◽  
Ying Wen Chen

The important flooding drainage phenomenon of the urban regions includes of ground water exchange, sewer water exchange and ground-sewer water exchange. Due to the spread of urban regions development with high economics activities, the distributions and specifications of ditch in urban regions are irregular and un-uniform, equivalent Manhole would be used instead of ditch water exchange and its mechanism to fill ground water and sewer water exchange mode evaluated for urban flooding mode in this study. Sewer’s catchment of Ming-Seng S. Rd 608 Street in Chiayi City as case study applied by SWMM model showing urban flooding phenomenon and the effective drainage mechanism during rainfall similar Typhoon Morakot, thus, providing reliable information and references for engineers.


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