Microbial community dynamics in an anaerobic biofilm reactor treating heavy oil refinery wastewater

RSC Advances ◽  
2016 ◽  
Vol 6 (109) ◽  
pp. 107442-107451 ◽  
Author(s):  
Honghong Dong ◽  
Hao Dong ◽  
Zhongzhi Zhang ◽  
Shanshan Sun ◽  
Wei Wang ◽  
...  
Keyword(s):  
Microbial Community ◽  
Heavy Oil ◽  
Community Dynamics ◽  
Biofilm Reactor ◽  
Oil Refinery ◽  
Refinery Wastewater ◽  
Field Scale ◽  
Microbial Community Dynamics ◽  
First Time ◽  
Oil Refinery Wastewater

We have established an anaerobic biofilm reactor (AnBR) for treating heavy oil refinery wastewater at the field scale for the first time.

scholarly journals The Impact of Bioaugmentation on the Performance and Microbial Community Dynamics of an Industrial-Scale Activated Sludge Sequencing Batch Reactor under Various Loading Shocks of Heavy Oil Refinery Wastewater

Water ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 2822
Author(s):  
Kai Cui ◽  
Quanshu Xu ◽  
Xiaoying Sheng ◽  
Qingfan Meng ◽  
Gaoyuan Shang ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Heavy Oil ◽  
Sequencing Batch Reactor ◽  
Community Dynamics ◽  
Batch Reactor ◽  
Oil Refinery ◽  
Refinery Wastewater ◽  
Microbial Community Dynamics ◽  
The Impact ◽  
Oil Refinery Wastewater

The stable and efficient operation of the activated sludge sequencing batch reactor (ASSBR) in heavy oil refineries has become an urgent necessity in wastewater biotreatment. Hence, we constructed a green and efficient solid bioaugmentation agent (SBA) to enhance the resistance of the reactor to loading shock. The impact of bioaugmentation on the performance and microbial community dynamics under three patterns of heavy oil refinery wastewater (HORW) loading shock (higher COD, higher toxicity, and higher flow rate) was investigated on an industrial-scale ASSBR. Results showed that the optimal SBA formulation was a ratio and addition of mixed bacteria Bacillus subtillis and Brucella sp., of 3:1 and 3.0%, respectively, and a glucose concentration of 5.0 mg/L. The shock resistance of ASSBR was gradually enhanced and normal performance was restored within 6–7 days by the addition of 0.2% SBA. Additionally, the removal efficiency of chemical oxygen demand and total nitrogen reached 86% and 55%, respectively. Furthermore, we found that Burkholderiaceae (12.9%) was replaced by Pseudomonadaceae (17.1%) in wastewater, and Lachnospiraceae (25.4%) in activated sludge was replaced by Prevotellaceae (35.3%), indicating that the impact of different shocks effectively accelerated the evolution of microbial communities and formed their own unique dominant bacterial families.

scholarly journals A cascade of a denitrification bioreactor and an aerobic biofilm reactor for heavy oil refinery wastewater treatment

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7495-7504 ◽  
Author(s):  
Honghong Dong ◽  
Xiaoyan Jiang ◽  
Shanshan Sun ◽  
Li Fang ◽  
Wei Wang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Heavy Oil ◽  
Biofilm Reactor ◽  
Oil Refinery ◽  
Refinery Wastewater ◽  
Denitrification Bioreactor ◽  
Oil Refinery Wastewater

The performance of an efficient denitrification bioreactor–aerobic biofilm reactor cascade for heavy oil refinery wastewater treatment was investigated.

scholarly journals Oil refinery wastewater treatment in biofilm reactor followed by sand filtration aiming water reuse

2012 ◽  
Vol 2 (2) ◽  
pp. 84-91 ◽  
Author(s):  
Isabelli N. Dias ◽  
Ana C. Cerqueira ◽  
Geraldo L. Sant'Anna ◽  
Marcia Dezotti
Keyword(s):  
Water Reuse ◽  
Slow Rate ◽  
Combined Treatment ◽  
Oxygen Demand ◽  
Biofilm Reactor ◽  
Oil Refinery ◽  
Treated Wastewater ◽  
Refinery Wastewater ◽  
Oil Refinery Wastewater

Oil refinery wastewater was sequentially treated in a moving-bed biofilm reactor (MBBR) and a slow-rate sand filter (SF) in order to obtain an effluent with adequate characteristics for downstream reverse osmosis (RO) operation. Experiments were conducted in bench scale units and the results showed that the MBBR was able to remove 90% chemical oxygen demand (COD), 75% NH4+, 95% phenols, operating with a hydraulic retention time (HRT) of 9 h. Additional removal of COD (15–40%) and ammonia (30–60%) was achieved in the slow-rate SF that was also effective for removing microorganisms. The silt density index (SDI) of the treated wastewater (4.5) was below the maximum limit recommended for RO operation. The quality of the effluent from the combined treatment system (MBBR+SF) was already adequate for cooling tower make-up. The RO produced an effluent with quality compatible with that required for use in boilers.

Electrochemical pretreatment of heavy oil refinery wastewater using a three-dimensional electrode reactor

2010 ◽  
Vol 55 (28) ◽  
pp. 8615-8620 ◽  
Author(s):  
Lingyong Wei ◽  
Shaohui Guo ◽  
Guangxu Yan ◽  
Chunmao Chen ◽  
Xiaoyan Jiang
Keyword(s):  
Heavy Oil ◽  
Three Dimensional ◽  
Oil Refinery ◽  
Refinery Wastewater ◽  
Electrochemical Pretreatment ◽  
Oil Refinery Wastewater
Sign in / Sign up

Export Citation Format

Share Document