[Enhanced bio-contact oxidation method to treat petrochemical wastewater by tourmaline].
Aiming at the complexity and poor biochemical degradability of petrochemical wastewater, the effect of tourmaline on bio-contact oxidation method was investigated. The influent and effluent of petrochemical wastewater were analyzed by GC-MS, and the carrier was observed in reactor by scanning electron microscope (SEM). As the loading rates of influent were COD 0.64-0.72 kg/(m3 x d) and NH4(+) -N 0.058-0.072 kg/(m3 x d), the start up of pilot system supported tourmaline were improved, and the removal rate of COD and NH4(+) -N of effluent was increased 8.7% and 6.4%, respectively. Organic pollutants of 100 kinds were detected in influent, mainly including aromatic hydrocarbon, acids, lipids, phenols, alcohols, and alkanes compounds. The removal efficiency of organic pollutant of reactor 1 with tourmaline was higher than reactor 2 without tourmaline. The number of organic pollutant in effluent from reactor 1 and 2 were 14 and 28, respectively. Zoogloea can be observed on carrier supported tourmaline, and the biomass of bacteria was predominant. The efficiency of bio-contact oxidation method on petrochemical wastewater treatment can be enhanced by tourmaline.
Jiang
Kan
K
College of Biology and Environmental Engineering, Shenyang University, Shenyang 110044, China. jiangkanhit@yahoo.com.cn
Ma
Fang
F
Sun
Tie-Heng
TH
Feng
Zhi-Yun
ZY
D001419:Bacteria / Q000254:growth & development / Q000378:metabolism; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D007220:Industrial Waste; D010084:Oxidation-Reduction; D010578:Petroleum; D017655:Silicon Compounds / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*
D007220:Industrial Waste; D010578:Petroleum; D017655:Silicon Compounds