The Effects of Operational Conditions on the Respiration Rate of Tubificidae

Lou, Juqing; Cao, Yongqing; Sun, Peide; Zheng, Ping

doi:10.1371/journal.pone.0081219

Cited by 10 publications

(8 citation statements)

References 51 publications

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“…In addition, the DO inside the sediment of Control-T and TUB-1 was also measured and the results were low in two reactors even when the sediment became more porous (Table 1). This is due to the strong respiration effect from Tubificidae and they consumes the most of DO in the sediment (Lou et al, 2013). The largest decrease (24.5 ± 3%) of LOI in the sediment was obtained using the SMFC in TUB-1 (Fig.…”

Section: Impacts Of Tubificidae On the Water Quality And Loss On Ignition (Loi) In The Sediment With And Without Smfcmentioning

confidence: 90%

Impacts of Bioturbation From Tubificidae on the Electrochemical Performance and Microbial Community of Sediment Microbial Fuel Cells

Xu¹

2019

Appl. Ecol. Env. Res.

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Sediment microbial fuel cells (SMFCs) have been examined extensively for bioremediation, but the impact of organisms that live in the sediment has not been previously investigated. In this study, the impacts from the bioturbation of Tubificidae on the electrochemical performance and microbial community of SMFCs were investigated using lake water and sediment. It was observed that Tubificidae were burrowing in the sediment and eventually dwelled on the anode of SMFCs. Although the voltage output of the SMFC in the presence of Tubificidae experienced a dramatic decline at the beginning of operation, it outperformed that of the SMFC in the absence of Tubificidae after operating for 30 days. The polarization curves of the SMFC anode and Shannon diversity index suggested that the anodic biofilm was devoured by Tubificidae. However, the cathode performance was improved due to more chemical oxygen demand (COD) and ammonia-nitrogen (NH3-N) released from the sediment. After 90 days of operation, a high loss on ignition (LOI) removal efficiency of 24.5 ± 3% was achieved by combining the anodic oxidation of SMFC and the ingestion of Tubificidae. This study shows that SMFCs can alleviate the impact of Tubificidae on pollutants transfer to overlying water and still remove organic matters from the sediment effectively.

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Section: Impacts Of Tubificidae On the Water Quality And Loss On Ignition (Loi) In The Sediment With And Without Smfcmentioning

confidence: 90%

Impacts of Bioturbation From Tubificidae on the Electrochemical Performance and Microbial Community of Sediment Microbial Fuel Cells

Xu¹

2019

Appl. Ecol. Env. Res.

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“…Observed soil pH values showed slightly alkaline soil condition over the incubation period irrespective of treatments. Neutral to slightly alkaline pH is beneficial for growth aquatic earthworm (Lou et al, 2013). Table 2 also shows total-C and total-N data of 35 DAI.…”

Section: Soil Environmentmentioning

confidence: 99%

Impact of Aquatic Earthworms on Methane Emission Reduction from the Paddy Field Soil in Japan

Mitra¹,

Kaneko²

2017

JAS

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Methane (CH 4 ) is one of the major greenhouse gases that significantly contributes to global warming. Therefore, substantial efforts are being made to reduce CH 4 emissions. Paddy fields make a major contribution to atmospheric CH 4 concentration because of their anoxic soil environment. Paddy field is habitat of many aquatic earthworms which can play a crucial role in reducing CH 4 emissions from paddy field, because their bioturbation activities influence the soil structure and increase oxygen penetration and hence the activity of methanotrophs. Therefore, it was hypothesized that aquatic earthworms may accelerate oxidation of CH 4 through their bioturbation activity. This incubation study evaluated the effects of earthworms on the activity of methanotrophs. Soil was incubated with a full factorial combination of two levels of aquatic earthworm (with and without earthworm) and two levels of fertilizer (with and without urea) for 35 days. The addition of urea increased the earthworm density in paddy soil by nearly doubled of without urea. At 28 days after incubation (DAI) the CH 4 flux decreased from 2055 mg m -2 h -1 in only urea received soil to 425 mg m -2 h -1 in soil received both urea and earthworm treatment. Phospholipid fatty acid analysis showed that the presence of aquatic earthworms contributed to an increase in the biomass of methanotrophs. The study implies that aquatic earthworms may play vital role to reduce CH 4 emission form paddy fields by creating favorable environment for methanotrophs, even in the soils fertilized with urea.

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“…Shafrudin et al (2005) DO optimum yang dibutuhkan oleh Annelida yaitu antara 2,75-5 mg/l, dan pH rata-rata yaitu berkisar 7,9 -8,3 yang mendukung kehidupan cacing juga, karena pH optimum untuk pertumbuhan Annelida yakni antara 6 -8 (Vebriane et al, 2014). Pada pH netral atau nilai pH mendekati alkali merupakan kondisi yang paling menguntungkan untuk Tubificidae dan Lumbriculidae (Lou et al, 2013).…”

Section: Metode Abc (Abudance Biomass Comparison)unclassified

Status Pencemaran Lingkungan Sungai Badung dan Sungai Mati di Provinsi Bali Berdasarkan Bioindikator Phylum Annelida

Labbaik¹,

Restu²,

Pratiwi³

2017

J. Mar. Aquat. Sci.

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Water pollution is the entry or inclusion of substances, energy and other components into the water by human activities, so that water quality decrease to a certain level. This study a timed to monitor the pollution of aquatic environment in the Badung River and Mati River by using Annelida phylum as bioindicator, the study was conducted from February to March 2017. The data obtained were analyzed by the structure of the community, and also used ABC (Abudance-Biomass Comparison) method. The result of the research showed that the most abundance of Annelida and dominant from all stations of Badung River and Mati River was Lumbriculus variegatus. Is showed that it contamination status was categorized as mild contamination because it was dominant by facultative organism. The structure of the Annelida community in the Badung River and Mati River with the value of the diversity index was categorized as low Annelida (H '<1.0). The uniformity index was categorized as depressed Annelida community (0.00 <E 0.50), high dominance index of Badung River (0.75 <C ? 1.00), Mati River was medium (0.50 < C < 0.75). The result of the water quality range as the supporting factor showed the average support for Annelida life i.e the current velocity 0.16 - 0.61 m/s, the temperature 25.5 - 31oC, DO 3-7.2 mg/l, pH 7.77 - 8.44 and BOD5 0.5 - 3.1 mg/l. The analysis environmental pollution condition of Badung River and Mati River with Annelida as bioindicator by using ABC method showed that were medium contaminated.

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The Effects of Operational Conditions on the Respiration Rate of Tubificidae

Cited by 10 publications

References 51 publications

Impacts of Bioturbation From Tubificidae on the Electrochemical Performance and Microbial Community of Sediment Microbial Fuel Cells

Impacts of Bioturbation From Tubificidae on the Electrochemical Performance and Microbial Community of Sediment Microbial Fuel Cells

Impact of Aquatic Earthworms on Methane Emission Reduction from the Paddy Field Soil in Japan

Status Pencemaran Lingkungan Sungai Badung dan Sungai Mati di Provinsi Bali Berdasarkan Bioindikator Phylum Annelida

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