scholarly journals An Upgrading Wastewater Treatment System by Using Anaerobic Fluidized Pellet Bed Bioreactor. Effects of Loading Variation on the Removal Efficiency.

1995 ◽  
Vol 31 (3) ◽  
pp. 193-201
Author(s):  
TATSUO SHIMIZU ◽  
KENZO KUDO ◽  
TOSHIO HAMAGUCHI ◽  
AKIRA NAKABAYASHI
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Treatment System ◽  
Wastewater Treatment System

Denitrification with ɛ-caprolactam by acclimated mixed culture and by pure culture of bacteria isolated from polyacrylonitrile fibre manufactured wastewater treatment system

2004 ◽  
Vol 49 (5-6) ◽  
pp. 341-354 ◽  
Author(s):  
C.M. Lee ◽  
C.C. Wang
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Complete Removal ◽  
Polyacrylonitrile Fibre ◽  
Treatment System ◽  
Synthetic Wastewater ◽  
Pure Strain ◽  
Wastewater Treatment System ◽  
Mixed Bacteria ◽  
Better Than

The aim of this study is to isolate denitrifying bacteria utilizing ɛ-caprolactam as the substrate, from a polyacrylonitrile fibre manufactured wastewater treatment system. The aim is also to compare the performance of PAN (polyacrylonitrile) mixed bacteria cultures acclimated to ɛ-caprolactam and isolated pure strain for treating different initial e-caprolactam concentrations from synthetic wastewater under anoxic conditions. The result showed that the PAN mixed bacteria cultures acclimated to e-caprolactam could utilize 1538.5 mg/l of ɛ-caprolactam as a substrate for denitrification. Sufficient time and about 2200 mg/l of nitrate were necessary for the complete ɛ-caprolactam removal. Paracoccus thiophilus was isolated from the polyacrylonitrile fibre manufactured wastewater treatment system and it could utilize 1722.5 mg/l of ɛ-caprolactam as a substrate for denitrification. About 3500 mg/l of nitrate was necessary for the complete removal of ɛ-caprolactam. When the initial ɛ-caprolactam concentration was below 784.3 mg/l, the removal efficiency of ɛ-caprolactam by Paracoccus thiophilus was better than that for the PAN mixed bacteria cultures. The growth of Paracoccus thiophilus was better. However, when the initial ɛ-caprolactam concentration was as high as 1445.8 mg/l, both the ɛ-caprolactam removal efficiency by Paracoccus thiophilus and Paracoccus thiophilus specific growth rate were similar to the PAN mixed bacteria cultures.

Removal efficiency of the constructed wetland wastewater treatment system at Bainikeng, Shenzhen

1995 ◽  
Vol 32 (3) ◽  
pp. 31-40 ◽  
Author(s):  
Yang Yang ◽  
Zhencheng Xu ◽  
Kangping Hu ◽  
Junsan Wang ◽  
Guizhi Wang
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Constructed Wetland ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Design Flow ◽  
Treatment System ◽  
Wastewater Treatment System ◽  
Tennessee Valley ◽  
Wetland System

In this paper, three years study on a constructed wetland wastewater treatment system at Bainikeng, Shenzhen, is reviewed and summarized. The wetland system under study occupies an area of 8400m2, with a design flow of 3100 m3 per day. The study was conducted to understand removal efficiencies of constructed wetland systems for municipal wastewaters from small or medium scale towns in the sub-tropics. Such parameters as biological oxygen demand, chemical oxygen demand, suspended solids, total nitrogen, and total phosphorus in the influent and effluent of the wetland system are examined, and their removal rates are determined. It is shown that the system is very effective in removing organic pollutants and suspended solids and its removal efficiency is much similar to those of the constructed wetlands at Tennessee Valley Authority (TVA) (Choate et al., 1990) while better than those of conventional secondary biochemical treatments.

Study on the Removal Efficiency of Nitrogen and Phosphorus in Wastewater Treatment System Using Magnetite Powder

2015 ◽  
Vol 18 (2) ◽  
pp. 43-47
Author(s):  
Eun-Young Jo ◽  
Seung-Min Park ◽  
In-Seol Yeo ◽  
Joeng-Sik Moon ◽  
Ju-Young Park ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Treatment System ◽  
Nitrogen And Phosphorus ◽  
Wastewater Treatment System

Acrylic acid removal from synthetic wastewater and industrial wastewater using Ralstonia solanacearum and Acidovorax avenae isolated from a wastewater treatment system manufactured with polyacrylonitrile fiber

2009 ◽  
Vol 60 (11) ◽  
pp. 3011-3016 ◽  
Author(s):  
C. C. Wang ◽  
C. M. Lee ◽  
A. S. Wu
Keyword(s):  
Wastewater Treatment ◽  
Acrylic Acid ◽  
Removal Efficiency ◽  
Acid Concentration ◽  
Ralstonia Solanacearum ◽  
Industrial Wastewater ◽  
Treatment System ◽  
Synthetic Wastewater ◽  
Polyacrylonitrile Fiber ◽  
Wastewater Treatment System

Ralstonia solanacearum and Acidovorax avenae were isolated from a wastewater treatment system manufactured with polyacrylonitrile fiber. The investigation goal is to elucidate the effectiveness of Ralstonia solanacearum and Acidovorax avenae in treating acrylic acid from synthetic wastewater and industrial wastewater. The results reveal that Ralstonia solanacearum and Acidovorax avenae could utilize acrylic acid from synthetic wastewater for growth, when the initial acrylic acid concentration was below 1,009.1 mg/l and 1,383.4 mg/l, respectively. When the acrylic acid concentration was below 606.8 mg/l, the acrylic acid removal ability reached 96.7% and 100%, respectively. Both strains could tolerate acrylamide toxicity, but only Ralstonia solanacearum could tolerate acrylonitrile toxicity. Ralstonia solanacearum and Acidovorax avenae could utilize acrylic acid from industrial wastewater for growth, when the initial acrylic acid concentration was below 1,741.1 mg/l and 1,431.2 mg/l, respectively. When the acrylic acid concentration was below 690.8 mg/l, the acrylic acid removal efficiency reached 83.5% and 62.2%, respectively. Whether the acrylic acid existed in synthetic wastewater or in industrial wastewater, the removal efficiency of acrylic acid by Ralstonia solanacearum exceeded that by Acidovorax avena.

scholarly journals Establishing a Smart Farm-Scale Piggery Wastewater Treatment System with the Internet of Things (IoT) Applications

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1654
Author(s):  
Jung-Jeng Su ◽  
Shih-Torng Ding ◽  
Hsin-Cheng Chung
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Oxygen Demand ◽  
Treatment System ◽  
Sensor Calibration ◽  
Piggery Wastewater ◽  
Wastewater Treatment System ◽  
Before And After ◽  
Farm Scale

The conventional piggery wastewater treatment system is mainly a manual operation system which may be well managed by experienced technicians. However, the pig farmers must simultaneously manage their pig production as well as their on-farm wastewater treatment facility. For this study, Internet of Things (IoT) applications were introduced on a 1000-pig farm to establish a smart piggery wastewater treatment system, which was upgraded from a self-developed fully automatic wastewater treatment system. Results showed that the removal efficiency of biochemical oxygen demand (BOD), chemical oxygen demand (COD), and suspended solids (SS) of the piggery wastewater based on the sensor data before and after water quality sensor calibration were 89%, 94%, and 93%, and 94%, 86%, and 96%, respectively. Moreover, the removal efficiency of BOD, COD, and SS of the piggery wastewater based on the analytical chemical data before and after water quality sensor calibration were 93%, 89%, and 97%, and 94%, 86%, and 96%, respectively. Experimental results showed that overall removal efficiency of BOD, COD, and SS of the piggery wastewater after water quality sensor calibration were 94%, 86–87%, and 96%, respectively. Results revealed that the farm-scale smart piggery wastewater treatment system was feasible to be applied and extended to more commercial pig farms for establishing sustainable pig farming.

scholarly journals Long‐term phosphorus accumulation and removal efficiency in a land‐based wastewater treatment system in the UK

2018 ◽  
Vol 33 (4) ◽  
pp. 589-598
Author(s):  
Maria del Mar Batista Seguí ◽  
Sean Tyrrel ◽  
Tim Hess ◽  
Ruben Sakrabani ◽  
David Knaggs
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Treatment System ◽  
Wastewater Treatment System ◽  
Phosphorus Accumulation ◽  
The Uk
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