Combination of upflow anaerobic sludge blanket (UASB) and membrane bioreactor (MBR) for berberine reduction from wastewater and the effects of berberine on bacterial community dynamics

2013 ◽  
Vol 246-247 ◽  
pp. 34-43 ◽  
Author(s):  
Guanglei Qiu ◽  
Yonghui Song ◽  
Ping Zeng ◽  
Liang Duan ◽  
Shuhu Xiao
Keyword(s):  
Bacterial Community ◽  
Membrane Bioreactor ◽  
Community Dynamics ◽  
Upflow Anaerobic Sludge Blanket ◽  
Anaerobic Sludge ◽  
Bacterial Community Dynamics ◽  
Anaerobic Sludge Blanket

scholarly journals Bacterial community dynamics in tropical soil after sewage sludge amendment

2020 ◽  
Vol 82 (12) ◽  
pp. 2937-2947
Author(s):  
Bruna C. Lopes ◽  
Raíssa S. Figueiredo ◽  
Juliana C. Araújo ◽  
Antonio T. Matos
Keyword(s):  
Sewage Sludge ◽  
Bacterial Community ◽  
Community Dynamics ◽  
Tropical Soils ◽  
Tropical Soil ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Anaerobic Sludge ◽  
Microbial Composition ◽  
Bacterial Community Dynamics

Abstract Although the widespread use of sewage sludge in developing countries is common, little is known about how sludge disposal can affect the microbial composition and diversity of tropical soils. We evaluated the effects of the sewage sludges of two types of anaerobic digestors differing, by the biological treatment they have undergone (uplow anaerobic sludge blanket and activated sludge digester), and two different disposal methods (surface and incorporated) on tropical soils. Samples were taken from topsoil (0–10 cm) and analyzed by amplifying the 16S rRNA genes to study the microbial community, and physicochemical analysis was performed concomitantly. The results indicated that, in general, sewage sludge amendment (SSA) significantly changed the tropical soil bacterial community by the sludge type and by application method. Moreover, the redundancy analysis diagram indicates that changes in soil chemical parameters over time due to SSA resulted in changes in the bacterial community's composition, increasing the population responsible for recycling nutrients in the soil.

Pemodelan Reaktor Hibrid Anaerob Pengolah Molasse Pada Pembebanan Organik Tinggi

2020 ◽  
Author(s):  
Gede H Cahyana
Keyword(s):  
Fluidized Bed ◽  
Fixed Bed ◽  
High Rate ◽  
Upflow Anaerobic Sludge Blanket ◽  
Anaerobic Sludge ◽  
Expanded Bed ◽  
Anaerobic Sludge Blanket

Telah dikembangkan reaktor anaerob kecepatan tinggi (high rate) yang merupakan modifikasi reaktor konvensional. Di antaranya berupa (bio)reaktor pertumbuhan tersuspensi (contoh: UASB, Upflow Anaerobic Sludge Blanket) dan reaktor pertumbuhan lekat (Fixed Bed atau Biofilter, Fluidized Bed, Expanded Bed, Rotating Biodisc dan Baffled Reactor). Kedua tipe reaktor di atas memiliki sejumlah kelebihan dan kekurangan. Untuk mengoptimalkan nilai positifnya (terutama untuk keperluan desain) maka reaktor tersebut, pada penelitian ini, disusun menjadi satu urutan yang disebut Reaktor Hibrid Anaerob (Rehan) yakni UASB di bawah dan AF di atasnya. Lebih lanjut, penelitian ini diharapkan dapat memberikan informasi tentang kinerja Rehan dalam mengolah air limbah (substrat) yang konsentrasi zat organiknya (COD) sangat tinggi dan suatu model matematika yang dapat mewakili reaktor tersebut.

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