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Sequential batch reactor with biofilm configuration for treating complex chemical and pharmaceutical effluents

A reactor and biofilm technology, applied in the field of continuous batch reactors, can solve the problem of no chemical sewage research

Inactive Publication Date: 2006-05-10
COUNCIL OF SCI & IND RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A thorough literature search revealed that, so far, no SBR technology has been studied for complex chemical wastewater such as pharmaceutical, pharmaceutical, chemical production units, etc.

Method used

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  • Sequential batch reactor with biofilm configuration for treating complex chemical and pharmaceutical effluents
  • Sequential batch reactor with biofilm configuration for treating complex chemical and pharmaceutical effluents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] During start-up of any bioreactor, reactor start-up is one of the important aspects to consider. The SBR was inoculated with organisms obtained from an activated sludge processing (ASP) unit obtained at an operational laboratory level, which had been continuously used for the past 3 years to treat complex chemical effluents. The mixed liquor from the aerobic chamber of the ASP unit was taken and fed as inoculum to the SBR reactor at a reactor volume ratio of 1:5.

[0061] After inoculation, synthetic feed (glucose: 1 g / L; sodium acetate: 1 g / L; Na 2 HPO 4 : 0.31 g / L) to run the reactor on the fixed bed for up to 7 days to accumulate biomass (biofilm VSS: 3 g / L). Then, the reactor is fed with 0.8kg COD / m 3 The organic loading rate per day is carried out with a specified waste liquid (pH: 7-83; TDS: 11g / L, SS: 0.9g / L; oil and grease: 14mg / L; ammonia nitrogen: 35mg / L; COD: 6g / L ; BOD: 2.4g / L, chloride: 5g / L; sulfate: 1.7g / L; phosphate: 360mg / L; phenol: 7.8mg / L).

[00...

Embodiment 2

[0064]The performance of an SBR for processing complex chemical effluents was evaluated by monitoring carbon removal (COD) throughout the reactor operation and throughout the cycle. In addition, pH, BOD, sulfate, suspended solids (SS) and dissolved oxygen (DO) were also measured in sequential operations to evaluate the performance of the SBR. The analytical procedures for monitoring the above parameters follow the procedures given in Standard Methods (Stand Methods, APHA, 1996).

Embodiment 3

[0066] At 0.8kg COD / m 3 The organic loading rate per day, using a full 24-hour cycle to carry out SBR in continuous batch mode, was used in this study to evaluate the suitability of the reactor for treating the complex chemical wastewater. In the initial stage (15 days) of described reactor start-up, with 0.8kgCOD / m 3 The reactor was operated at an organic loading rate per day and the performance of the reactor was evaluated by monitoring carbon removal (COD and BOD) during the sequential (cyclic) operation as well as throughout the reactor operation .

[0067] serial number

[0068] For COD, at 0.8kg COD / m 3 A removal of 78% was observed at an organic loading rate of A 91% removal of BOD was observed after stabilization of the reactor was achieved. From the reactor performance data obtained it can be deduced that the SBR showed much better performance in terms of COD removal when compared to the existing ASP system. With different organic loading rates (0.8kg C...

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Abstract

This present invention relates to the development of sequential batch reactor technology with biofilm configuration for the treatment of complex chemical and pharmaceutical effluents. The main usage of the present invention is the development of new technology (sequential batch reactor) with biofilm configuration for the treatment of complex chemical and pharmaceutical effluents. The technology is considered to be effective, economical and flexible to operate as compared to the traditional continuos flow treatment process. The present invention can be used for the treatment of any industrial effluents either chemical or non-chemical origin.

Description

field of invention [0001] The invention relates to a continuous batch reactor technology for treating complicated chemical industry and pharmaceutical waste liquid by means of a biofilm structure. More particularly, the present invention relates to biofilm-based continuous batch reactors for complex chemical and pharmaceutical waste liquids that can be operated more efficiently, economically and flexibly than conventional continuous flow treatment methods. The invention can be used to treat any industrial waste liquid of chemical or non-chemical origin. Background of the invention [0002] Waste liquids generated by the chemical and pharmaceutical industries are characterized by quality and quantity. The different nature of the effluents generated by these units is due to differences in the treatment and consumption of large quantities of organic and inorganic materials. Variability in wastewater flow and composition (changes in manufactured products, temporary operation o...

Claims

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Application Information

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IPC IPC(8): C02F3/12C02F3/06C02F3/10C02F3/30
CPCC02F3/06C02F3/10C02F3/1263C02F3/301C02F2209/44Y02W10/10
Inventor 雷迪·文卡塔·莫汉·斯里尼瓦苏卢帕娜帕丽·纳格斯瓦朗·萨尔玛努纳·钱德拉谢卡尔·拉奥卡图瑞·克里希纳·普拉萨德维贾雅·拉古文·孔达普拉姆
Owner COUNCIL OF SCI & IND RES
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