Isolation ofListeria monocytogenesfrom a bite in a cat from the common tree weta (Hemideina crassidens)

SUMMARYCombustion of biogas containing hydrogen sulphide (H2S) yields highly corrosive sulphur oxides, thereby limiting the use of biogas for heat and power generation. The current study developed and tested a pilot-scale biogas bio-filter system (BBS) to replace conventional water scrubbing systems at a commercial pig farm in Miaoli County, Taiwan. A 62·8-litre pilot-scale BBS, packed with dried aerial roots from the common tree fern (Sphaeropteris lepifera) and a mixture of dried aerial roots and plastic rings as bio-carriers and inoculated with sulphur oxidizing bacteria, was installed at a commercial pig farm. H2S concentration was 5600 mg/m3 and the biogas flow rate was 4 litres/min. The pilot-scale BBS could remove 26·9 g H2S/m3/h using a bio-filter that operated at a 7% (v/v) O2 level continuously for >200 days. It was found that most H2S was oxidized to elemental sulphur (S0) and accumulated on the surface of the dried aerial roots (0·084 g S0/g aerial root) in the BBS. The dried aerial roots and plastic Raschig ring mixture was more efficent at sulphur dioxide removal than the dried aerial roots on their own. The pH and sulphate (SO42−) concentrations of water dropping from the BBS were 1·6 ± 1·0 and 28 680 ± 8253 mg/l, respectively. However, sulphur is the dominant product of sulphur oxidizers at the 7% O2 level. Periodical flushing of the bio-filter with the effluent from the wastewater treatment system on the farm can maintain high efficiency of H2S removal.

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Tupaiataenia quentini gen. et sp. n. (Anoplocephalidae: Linstowiinae) and Other Tapeworms from the Common Tree Shrew, Tupaia glis

Journal of Parasitology ◽

10.2307/3280004 ◽

1977 ◽

Vol 63 (3) ◽

pp. 473 ◽

Cited By ~ 4

Author(s):

Gerald D. Schmidt ◽

Sharon File

Keyword(s):

Tree Shrew ◽

Tupaia Glis ◽

The Common ◽

Common Tree

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The distribution and nest-site preference of Apis dorsata binghami at Maros Forest, South Sulawesi, Indonesia

Journal of Insect Biodiversity ◽

10.12976/jib/2016.4.23 ◽

2016 ◽

Vol 4 (23) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

Muhammad Teguh Nagir ◽

Tri Atmowidi ◽

Sih Kahono

Keyword(s):

Honey Bee ◽

Nest Site ◽

Ground Level ◽

Survey Method ◽

Site Preference ◽

Apis Dorsata ◽

South Sulawesi ◽

Nesting Sites ◽

The Common ◽

Common Tree

The giant honey bee, Apis dorsata binghami is subspecies of Apis dorsata. This species of bee was only found in Sulawesi and its surrounding islands. This study is aimed to study the distribution and characteristics of nest and nesting trees, nesting behavior of Apis dorsata binghami in the forests of Maros, South Sulawesi, Indonesia. The distributions of nests were observed using a survey method to record the species and characteristics of nesting trees, as well as the conditions around the nest. Results showed that 102 nests (17 active nests, 85 abandoned combs) of A. d. binghami were found. We found 34 species belong to 27 genera in 17 families of plants as nesting sites of giant honey bee. The common tree species used as nesting sites were Ficus subulata (Moraceae), Adenanthera sp. (Fabaceae), Spondias pinnata (Anacardiaceae), Artocarpus sericoarpus (Moraceae), Alstonia scholaris (Apocynaceae), Knema cinerea (Myristicaceae), Litsea mappacea (Lauraceae), and Palaquium obovatum (Sapotaceae). The nests were found in 0-11 meters (11 nests), 11-20 meters (40 nests), and more than 21 meters (51 nests) from ground level. The nests of giant honey bee were found in sturdy and woody branches, hard to peel, the slope of the branches was <60°, and nests were protected by liane plants, foliage, or both them.

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