Application of ethylene diamine tetra acetic acid degrading bacterium Burkholderia cepacia on biotreatment process. (October 2015)

• Record Type: Journal Article
• Authors: Chen, Wei-Ting; Shen, Shu-Min; Shu, Chi-Min
• Is Part Of: Bioresource technology. Volume 193(2015)
• Page Start: 357
• Page End: 362
• Publication Date: 2015-10
• Subjects: Ethylene diamine tetra acetic acid (EDTA) -- Burkholderia cepacia -- Batch degradation -- Nutrients -- Activated sludge; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2015.06.099
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: EDTA can be properly biodegraded by Burkholderia cepacia . Continuous process and batch treatment were used in EDTA wastewater degradation. The strain YL-6 was identified as Burkholderia cepacia . The results showed that batch treatment was more suited for EDTA biodegradation. Removal efficiency of EDTA and COD mostly researched to 100% by batch treatment. Abstract: Ethylene diamine tetra acetic acid (EDTA), the effluent of secondary biotreatment units, can be properly biodegraded by Burkholderia cepacia . Through batch degradation of EDTA, the raw wastewater of EDTA was controlled at 50 mg/L, and then nutrients was added in diluted wastewater to cultivate activated sludge, which the ratio of composition is depicted as "COD:N:P:Fe = 100:5:1:0.5". After 27 days, the removal efficiency of Fe-EDTA and COD was 100% and 92.0%, correspondingly. At the continuous process, the raw wastewater of EDTA was dictated at 166 mg/L before adding nutrients to cultivate activated sludge, in which the ratio of composition did also follow with batch process. After 22 days, the removal efficiency of Fe-EDTA and COD for experimental group was 71.46% and 62.58%, correspondingly. The results showed that the batch process was more suited for EDTA biodegradation.