Transformation and degradation mechanism of landfill leachates in a combined process of SAARB and ozonation

A pilot-scale test on the treatment of biological pretreated leachate by the synergy of ozonation-biological treatment-catalytic ozonation

“…As shown in Fig. 2 (a), this process improved the biodegradability, with B/C average rising from 0.059 to 0.237, laying a foundation for subsequent biological system [33,34]. The parameters of ozonation are mainly decided by adjusting the influent flow, power of ozone generator and gas flow, changing the water retention time and ozone dosage.…”

Impact of Salinity on Stabilized Leachate Treatment from Ozonation Process

“…The higher the salinity due to the higher TDS can increase leachate's toxicity because it can change the ion composition [28]. TDS can be sodium (salt), calcium, magnesium, potassium, carbonate, nitrate, bicarbonate, chloride, and sulfate [29]. TDS primarily revealed the presence of inorganic salts and dissolved organics.…”

A microwave radiation-enhanced Fe–C/persulfate system for the treatment of refractory organic matter from biologically treated landfill leachate

“…However, the effluent from a SAARB (denoted as SAARB leachate) cannot meet the relevant discharge standards due to its high concentration of refractory pollutants, and therefore further advanced treatment needs to be carried out on the SAARB leachate. 21,22 In contrast, advanced oxidation technology can generate highly chemically reactive free radicals through various physical or chemical reactions (e.g., photoelectric, acoustic, and magnetic reactions), enabling the refractory organic pollutants in wastewater to be rapidly degraded. [23][24][25][26] Persulfate (PS), a strong oxidant that is relatively convenient for storage and transportation, can generate SO À 4 , which has a high redox potential (E 0 ¼ 2.6 V), via different activation methods.…”