A pilot scale experiment was conducted to evaluate the characteristics of contaminants removal in a continuously two-stage biological process composed of an anoxic biofilter (AF) and an biological aerated filter (BAF). This novel process was developed by introducing new composite packing material (MZF) into bioreactors to treat rural domestic wastewater. A comparative study conducted by the same process with ceramsite as packing material under the same conditions showed that a MZF system with a Fe proportion in the packing material performed better in chemical oxygen demand (COD) removal (average 91.5%), ammonia (NH4+-N) removal (average 98.3%), total nitrogen (TN) removal (average 64.8%) and total phosphorus (TP) removal (average 90%). After treatment of the MZF system, the concentrations of COD, NH4+-N, TN and TP in effluent were 20.3 mg/L, 0.5 mg/L, 11.5 mg/L and 0.3 mg/L, respectively. The simultaneously high efficiencies of nitrification, denitrification and phosphorus removal were achieved by the coupling effects of biological and chemical processes in the MZF system. The results of this study showed that the application of MZF might be a favorable choice as packing material in biofilters for treatment of rural domestic wastewater.
Skip Nav Destination
Article navigation
Research Article|
February 25 2016
A novel anoxic–aerobic biofilter process using new composite packing material for the treatment of rural domestic wastewater
L. T. Pan;
1Institute of Modern Agricultural Science and Engineering, Tongji University, Shanghai 200092, China
E-mail: lutingpan@163.com
Search for other works by this author on:
Y. Han
Y. Han
1Institute of Modern Agricultural Science and Engineering, Tongji University, Shanghai 200092, China
Search for other works by this author on:
Water Sci Technol (2016) 73 (10): 2486–2492.
Article history
Received:
November 24 2015
Accepted:
February 05 2016
Citation
L. T. Pan, Y. Han; A novel anoxic–aerobic biofilter process using new composite packing material for the treatment of rural domestic wastewater. Water Sci Technol 18 May 2016; 73 (10): 2486–2492. doi: https://doi.org/10.2166/wst.2016.099
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00