Study on Treatment of Swine Wastewater by Sodium Type Mercerizing Zeolite

The efficiency of swine wastewater treatment was studied by static experiment and dynamic experiment, using sodium type mercerizing as adsorbent. The optimum parameter condition for swine wastewater treatment summarized. The experimental results showed that the optimum parameters were pH=8.0, t=24h, T=25, 300 g/L zeolite in the static experiment. In dynamic experiment when the velocity was 6 BV/h, 12 BV/h and 24 BV/h, the penetrating capacity and volume of ammonia-nitrogen, phosphorus and CODCr were calculated. The removal efficiency of ammonia-nitrogen, phosphorus and CODCr was highest under the velocity of 12 BV/h. Penetrates capacity of ammonia nitrogen and phosphorus were 4.04 mg/g and 0.14 mg/g, penetrates volume were 29 BV and 58 BV, respectively.