Study on the Treatment of Domestic Sewage with Water Quenched Slag Biological Aerated Filter

2011 ◽  
Vol 306-307 ◽  
pp. 1541-1544
Author(s):  
Yan Zhen Yu ◽  
Yan Feng ◽  
Lei Cheng
Keyword(s):  
Blast Furnace ◽  
Removal Rate ◽  
Primary Standard ◽  
Sewage Treatment ◽  
Domestic Sewage ◽  
Biological Aerated Filter ◽  
Wastewater Discharge ◽  
Treatment Efficiency ◽  
Aerated Filter ◽  
Quality Indexes

The blast furnace water quenched slag has characteristics such as porous and superficial roughness, so it can be modified and cranked out a filter media. The treatment efficiency of domestic sewage with water quenched slag biological aerated filter (BAF) was researched in this paper. And the removal rate of organic compound, ammonium, SS, and chroma was also investigated. The results showed that the quality indexes of the domestic sewage after treatment met the primary standard of the national integrated wastewater discharge standard (GB8978-1996). So the purpose of the waste harnessed by other waste is achieved. The applicative prospect of blast furnace water quenched slag on domestic sewage treatment is very broad.

Experimental Study on Domestic Sewage Treatment by Biological Aerated Filter

2011 ◽  
Vol 183-185 ◽  
pp. 432-436
Author(s):  
Xia Wang ◽  
Yong Qiang Wu
Keyword(s):  
Sewage Treatment ◽  
Domestic Sewage ◽  
Operating Conditions ◽  
Operating Costs ◽  
Biological Aerated Filter ◽  
Optimal Operating ◽  
Hydraulic Loading ◽  
N Removal ◽  
Aerated Filter ◽  
Water Ratio

On the up-flow biological aerated filter to remove COD and NH3-N were studied the effect and contrast in various stages of finding the optimal operating conditions, so as to achieve energy conservation, the purpose of reducing operating costs. Through experiment studied that the variation of air-water ratio, hydraulic loading, organic concentration in the removal of COD and NH3-N effects, observe and analyse the change of COD and NH3-N removal and the characteristics of microorganisms of filter’s different height. The results showed that COD and NH3-N removal are high under the condition of air-water ratio 4:1~5:1, hydraulic loading 1~2 m3/ (m2●h), organic concentration 300~400 mg/L. The concentration of COD and NH3-N of effluent which are treated by biological aerated filter can meet with second degree discharging standards.

Research on Removal Performance of Integrated Biological Aerated Filter to Sewage Treatment

2011 ◽  
Vol 271-273 ◽  
pp. 357-362
Author(s):  
Xiu Ju Duan ◽  
Qiang He ◽  
Ya Li Liu
Keyword(s):  
Small Volume ◽  
Sewage Treatment ◽  
Influence Factors ◽  
Biological Aerated Filter ◽  
Treatment Efficiency ◽  
Research Focus ◽  
Volume Loading ◽  
Treatment Performance ◽  
Aerated Filter ◽  
High Treatment

Biological Aerated Filter has many advantages, such as small volume, high treatment efficiency, etc. This research focus on sewage treatment performance of Integrated Biological Aerated Filter (IBAF), have test under different conditions; research on affections of such influence factors as aeration, CODCr volume loading, HRT, temperature, the height of fillers layer on IBAF, and optimize its functional parameter; discuss regularities of sewage treatment of IBAF under different oprating conditions, adopt feasible measures to guarantee its exceed water quality.

The Experimental Study of Ammonia Removal in Compound Clinoptilolite Biological Aerated Filter (BAF)

2013 ◽  
Vol 295-298 ◽  
pp. 232-235
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 ◽  
Ammonia Removal ◽  
High Porosity ◽  
Biological Aerated Filter ◽  
Wastewater Discharge ◽  
First Order ◽  
Aerated Filter

The experiment use clinoptilolite powder as main materials to prepare the large specific surface and high porosity spherical compound filter material.Experimental results indicate that compound filter material is used as filter medium in biological aerated filter for wastewater treatment，in the early 5 days the average removal rate of NH3-N was 58.5% in biological aerated filter when the average influent NH3-N concentration was 37 mg/L. At the stably running phase, the average removal ratio and concentration of effluent NH3-N reached 83.51% and 5.81mg/L, when the average concentrations of influent NH3-N was 35mg/L which could meet the first order discharging index of Integrated Wastewater Discharge Standard (GB 8978-1996).

Study on SBR Filled with Humus Soil for Domestic Sewage Treatment

2013 ◽  
Vol 295-298 ◽  
pp. 1249-1253
Author(s):  
Ke Zhao ◽  
Jun Yin ◽  
Gang Zhu ◽  
Chang Bing Ye ◽  
Wei Bing Chen
Keyword(s):  
Degradation Rate ◽  
Removal Rate ◽  
Sewage Treatment ◽  
Domestic Sewage ◽  
Oxidation Time ◽  
Treatment Efficiency ◽  
Removal Rates ◽  
Organic Matters ◽  
Operation Cost ◽  
Humus Soil

The treatment efficiency of domestic sewage by the SBR filled with humus soil was investigated and compared with that by the conventional SBR. The results show that the removal rates of organic matters, NH4+-N and TP by the SBR filled with humus soil reach 85%, 83% and 72% respectively. Compared with the conventional SBR, the degradation rate of organic matters is improved, and the addition of humus soil contributes to occurrence of SND, thus the removal rate of NH4+-N is increased. The addition of humus soil shortens the oxidation time of organic matters and the nitrification time of NH4+-N, which can improve the treatment efficiency and reduce the operation cost.

The Effect of Simulated Domestic Wastewater Treatment by Biofilm and Biological Filter Processing

2013 ◽  
Vol 395-396 ◽  
pp. 1248-1252
Author(s):  
Xiang Wei Sun ◽  
Shan Quan Jiang ◽  
Yun Cheng Xie
Keyword(s):  
Wastewater Treatment ◽  
Lower Energy ◽  
Removal Rate ◽  
Sewage Treatment ◽  
Domestic Wastewater ◽  
Domestic Sewage ◽  
Organic Loading ◽  
Treatment Efficiency ◽  
Biological Filter ◽  
Domestic Wastewater Treatment

Simulative wastewater was treated by a biofilm with soft filling and biological filter processing, the removal rate of COD /TN/NH4+-N and TP were discussed at different C/N ratio. The combined processing of biofilm and biological filter was studied. The results showed that the removal rate of COD is 80%. Biofilm had highly treatment efficiency and biological filter processing needed lower energy at low organic loading. The combined processing showed that the removal rate of COD and NH4+-N is more than 80% and 65% respectively. It will help for further study of domestic sewage treatment.

Bioaugmentation Treatment of Bromoamine Acid Wastewater with Sphingomonas Sp. FL

2011 ◽  
Vol 183-185 ◽  
pp. 814-818 ◽  
Author(s):  
Li Fan
Keyword(s):  
Retention Time ◽  
Removal Rate ◽  
Sole Source ◽  
Biological Aerated Filter ◽  
Treatment Efficiency ◽  
Efficient Removal ◽  
Combined Process ◽  
Hydraulic Loading ◽  
Aerated Filter

One effective bromoamine acid (BAA) degrading strain FL was isolated previously with the ability to use BAA as the sole source of carbon and energy. The strain FL was applied in a combined process of microelectrolysis (ME) and biological aerated filter (BAF) to treat the bromoamine acid wastewater, and the treatment efficiency was investigated. It was shown that when the influent CODcr was lower than 1000 mg L-1, and the total hydrolytic retention time (HRT) was 37.7 h, the removal rate of chrominance and CODcr could reach 95.3% and 77.3% respectively. Most of the chrominance was removed by the ME treatment, while the removal of CODcr is mostly owned to the BAF treatment. After long-term contact with the BAA wastewater, the strain FL became one of the predominent species in BAF. When the system was subjected to hydraulic loading shock, the strain FL ensured the efficient removal of chrominance and BAA.

Preliminary Micro Flora Diversity in Biological Aerated Filter by Molecular Ecology

2013 ◽  
Vol 740 ◽  
pp. 805-808
Author(s):  
Miao Wan Li ◽  
Yan Zhen Yu ◽  
Yan Feng ◽  
Lei Cheng
Keyword(s):  
Phosphorus Removal ◽  
Removal Rate ◽  
Molecular Ecology ◽  
Sewage Treatment ◽  
Biological Aerated Filter ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Aerated Filter ◽  
Flora Diversity ◽  
Important Significance

Use molecular ecology technology to analyze bacteria populations in biofilm, which has a very important significance for effective sewage treatment and improvement of nitrogen and phosphorus removal rate. This article described RFLP, SSCP, FISH etc., brought together the research results at home and abroad, broadened the idea of exploring the diversity of microorganisms, the structure and distribution, as well as the dynamic in BAF.

COD removal efficiency and mechanism of HMBR in high volumetric loading for ship domestic sewage treatment

2016 ◽  
Vol 74 (7) ◽  
pp. 1509-1517 ◽  
Author(s):  
Linan Zhu ◽  
Hailing He ◽  
Chunli Wang
Keyword(s):  
Removal Efficiency ◽  
Removal Rate ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Domestic Sewage ◽  
Cod Removal ◽  
Aeration Tank ◽  
Remarkable Effect ◽  
Cod Removal Efficiency ◽  
Volumetric Loading

The hybrid membrane bioreactor (HMBR) has been applied in ship domestic sewage treatment under high volumetric loading for ship space saving. The mechanism and influence factors on the efficiency, including hydraulic retention time (HRT), dissolved oxygen (DO) of chemical oxygen demand (COD) removal were investigated. The HMBR's average COD removal rate was up to 95.13% on volumetric loading of 2.4 kgCOD/(m3•d) and the COD concentration in the effluent was 48.5 mg/L, far below the International Maritime Organization (IMO) discharge standard of 125 mg/L. DO had a more remarkable effect on the COD removal efficiency than HRT. In addition, HMBR revealed an excellent capability of resisting organics loading impact. Within the range of volumetric loading of 0.72 to 4.8 kg COD/(m3•d), the effluent COD concentration satisfied the discharge requirement of IMO. It was found that the organics degradation in the aeration tank followed the first-order reaction, with obtained kinetic parameters of vmax (2.79 d−1) and Ks (395 mg/L). The original finding of this study had shown the effectiveness of HMBR in organic contaminant degradation at high substrate concentration, which can be used as guidance in the full scale of the design, operation and maintenance of ship domestic sewage treatment devices.

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.

Sign in / Sign up

Export Citation Format

Share Document