Experimental study on advanced treatment of refinery wastewater by ozone catalytic oxidation and biological aerated filter

2017 ◽  
Vol 2017 (7) ◽  
pp. 6-7
Keyword(s):  
Experimental Study ◽  
Catalytic Oxidation ◽  
Advanced Treatment ◽  
Biological Aerated Filter ◽  
Refinery Wastewater ◽  
Aerated Filter

The Experimental Study of Contaminant Removal in Water Quenched Slag Biological Aerated Filter (BAF)

2012 ◽  
Vol 602-604 ◽  
pp. 1171-1174
Author(s):  
Long Long Gao ◽  
Yan Zhen Yu ◽  
Miao Wan Li ◽  
Yu Xing Zhou ◽  
Hua Dong Zhang
Keyword(s):  
Experimental Study ◽  
Wastewater Treatment ◽  
Removal Rate ◽  
Filter Material ◽  
Experimental Results ◽  
Filter Medium ◽  
Contaminant Removal ◽  
Biological Aerated Filter ◽  
Aerated Filter ◽  
Second Use

In order to effectively resolve pollution issue of water quenched slag and its comprehensive use or second use of materials, the water quenched slag filter material is developed using water quenched slag with the addition of adhesion-increasing agent and porogen by commingle, pelletizing and curing. Experimental results indicate that water quenched slag filter material is used as filter medium in biological aerated filter for wastewater treatment,and the removal rate of COD, NH3-N comes up to 84.62%,90.20% respectively. The filter material is much more predominant and possesses a much wider application prospect in the treatment of wastewate.

A Novel Application of Combined Bio-Technologies on Chemical Synthesis-Based Pharmaceutical Wastewater

2012 ◽  
Vol 455-456 ◽  
pp. 1261-1266
Author(s):  
Zhan Li Chen ◽  
Xiao Hua Huang ◽  
Zhen Zhong Liu ◽  
Xian Rong Sun
Keyword(s):  
Wastewater Treatment ◽  
Chemical Synthesis ◽  
First Grade ◽  
Advanced Treatment ◽  
Biological Aerated Filter ◽  
Pharmaceutical Wastewater ◽  
Hydrolysis Acidification ◽  
Aerated Filter ◽  
Low Do ◽  
Organic Wastewater

This chemical synthesis-based pharmaceutical wastewater is treated by the process of hybrid hydrolysis acidification technique (HHAT) with anaerobic-low DO condition and the hybrid aerobic bio-technology consisted of alternate-flow biological reactor (ABR) and two-way-flow biological aerated filter (TBAF). The micro aerobic technology was employed in the HHAT and showed its advantages in refractory organic wastewater treatment. The largest plant in pharmaceutical wastewater treatment at home was built. The practice shows that the organics can be greatly removed and the effluent can reach the First Grade Discharge Standard which can be reclaimed with advanced treatment. The performance indicates that the combined bio-technologies are stable in pharmaceutical wastewater treatment.

Advanced Treatment of Wastewater from an Ethylene Chemical Enterprise by a Biological Aerated Filter-Ultrafiltration-Reverse Osmosis Process

2013 ◽  
Vol 726-731 ◽  
pp. 1673-1678
Author(s):  
Li Hua Li ◽  
Xiu Lan Dai ◽  
Fang Ma
Keyword(s):  
Reverse Osmosis ◽  
Continuous Operation ◽  
Advanced Treatment ◽  
Operating Pressure ◽  
Biological Aerated Filter ◽  
Chemical Cleaning ◽  
Operation Stability ◽  
Ro Membrane ◽  
Aerated Filter ◽  
The Cost

This work focused on the advanced treatment of the secondary treated ethylene chemical plant effluent, which contained high conductivity and high organic concentration. To reduce the cost and improve operation stability, a biological aerated filter-ultrafiltration-reverse osmosis (BAF-UF-RO) process was proposed. The feasibility and effectiveness of the BAF loaded with a novel non-sintered fly-ash ceramsite (NSFC) as pretreatment method were investigated in detail. The results showed that the COD, turbidity, NH3-N and SDI15in the effluent from the BAF were reduced largely. The BAF-UF-RO process was stable with the recovery rate of 75%, and the desalination rate was up to about 97.5%. Moreover, the operating pressure and backwash frequency of RO maintained 0.94-0.98 MPa and 2 times/d, respectively. After continuous operation for four months, there appeared to be no need for chemical cleaning of the RO membrane.

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