Self-build packed-bed bioreactor for rapid and effective BOD estimation

Phuong, Pham T. T.; Nguyen, Phuc H.; Nguyen, Thi Thuy; Duong, Huynh Thanh Linh

doi:10.1007/s11356-019-05711-z

Cited by 10 publications

(3 citation statements)

References 47 publications

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“…Biochemical oxygen demand (BOD) is a widely used index for estimating the level of water pollution by organic compounds [1]. BOD can provide useful information for biological and environmental impact assessment and has been the most preferred method for environmental applications [2][3][4][5]. The standard BOD 5 method described by APHA (1998) is the most widely used method for measuring biodegradable organic levels in waters and wastewaters [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…To date, tremendous efforts have been devoted to developing new BOD detection methods to reduce assay time and simplify procedures to meet the requirements of end users [4,7,[9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26], such as (i) biosensors based on biolumines-cent bacteria, (ii) biosensors with redox mediators, (iii) microbial fuel cell (MFC) biosensor, (iv) biosensors with entrapped microorganisms, and (v) biosensors based on the bioreactor/chemist at technology [2,5]. Among them, because of the complexity and low precision of the bioluminescence reaction, the two former technologies show the least potential in practical applications [5,20,22,23,27,28]. Currently, the most widely adopted approach is the type of biosensor method based on the respiration rate [5,26].…”

Section: Introductionmentioning

confidence: 99%

“…Among them, because of the complexity and low precision of the bioluminescence reaction, the two former technologies show the least potential in practical applications [5,20,22,23,27,28]. Currently, the most widely adopted approach is the type of biosensor method based on the respiration rate [5,26]. In addition, MCF has become the mostly studied method.…”

Section: Introductionmentioning

confidence: 99%

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A Current Sensing Biosensor for BOD Rapid Measurement

Liu

Nianxin

et al. 2020

Archaea

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In order to improve the practicality of the rapid biochemical oxygen demand (BOD) method, a highly sensitive rapid detection method for BOD that is based on establishing the correlation between current and dissolved oxygen (DO) was developed. In this experiment, Bacillus subtilis was used as the test microorganism, and the embedding method was used to achieve quantitative fixation of microorganisms, which could increase the content of microorganisms and prolong the service life of the biological element. The conductivity (COND) probe is used as a sensing element, so that the testing value can be read every second. In the program, the moving average method is used to process the collected data so that the value can be read every minute. National standard samples were detected to test the accuracy and stability of the method. The results showed that relative error and analytical standard deviations were less than 5%. Different polluted water was tested to evaluate its application range. The results showed that relative error was less than 5%. The results of the method are consistent with the results of the wastewater sample obtained by the BOD5 standard method. The proposed rapid BOD current sensing biosensor method should be promising in practical application of wastewater monitoring.

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