Research On The Optimal Physical Adsorption Conditions Of Leachate Recirculation

Leachate is toxic and hazardous substances, recharge processing is an emerging technology Initial sanitary landfill, leachate is adsorpped by waste, this paper simulate the absorption scenarios, setting different factors to select the best physical adsorption conditions of leachate recirculation.Static test adjust pH of the leachate were adjusted to about pH=4, pH=7, pH=9with a pH buffer. Take a good tune30mL leachate, were poured into30small bottle, then put the sample shaker quickly, a fixed temperature and speed, temperature controlled at10℃,30℃,50℃. Then samples from different sampling time index detection determination of its inorganic and organic pollutants comprehensive index features integrated indicators. Analysis at different pH, different temperatures, different types of three factors trash, garbage leachate organics and ammonia adsorption and release conditions. The experimental results showed that: the best physical adsorption conditions for leachate recirculation pH leachate under alkaline conditions, about pH=9; temperature around30degrees; garbage types of aging trash. Meanwhile experiments also showed that:the pH=9, T=50, the pH rises as the temperature rises, the presence of ammonia to form leachate free ammonia-based, with less solid state; because of garbage leachate adsorption, waste ammonia exists mainly in the form of ammonia ions.