Abstract This work aims to identify the best treatment condition for removal of chemical oxigen demand (COD) and increase biodegradability in an advanced oxidative process photocatalytic ozonation with titanium dioxide (TiO2), applied remediation leachate produced at municipal landfill Campo Mourao, Parana. The experiment was carried out using a chamber system based on corona effect. A statisti...

The current work aimed to evaluate the feasibility of including ozone (O3)-based advanced oxidation processes (AOPs), as an intermediate step, in a multistage treatment system for non-biodegradable sulphur-rich leachate from hazardous industrial solid waste landfill (HISWL), combining chemical and biological technologies. O3-based AOPs covered perozonation (O3/H2O2), photo-assisted ozonation (O...

Antibiotics are a new class of organic compounds that have antibacterial and anti-inflammatory effects in the clinic, but their widespread use has serious adverse on natural water environment. Sulfadiazine (SDZ) is typical kind antibiotic, treatment effect traditional biochemical degradation process not been ideal. Thus, order to find more efficient clean method, we investigated ozone/persulfat...

The use of different organic carbon sources in the denitrification of wastewater containing 2500 mg nitrates/L in a SBR was studied. Three alternative sources of carbon were tested: wastewater from a sweet factory, a residue from a soft drinks factory and a residue from a dairy plant. The first two are sugar-rich, whereas the third presents a high content in lactic acid. Maximum specific denitr...

Recovery of biodegradable plastics from activated sludge is a promising sustainable technology. In this study, polyhydroxybutyrate (PHB) – a biodegradable plastics material was produced by activated sludge performing enhanced biological phosphorus removal (EBPR) in batch experiments under anaerobic, aerobic and anaerobic/aerobic conditions. Under anaerobic conditions, the PHB content of 28.8% o...

Adlay is a cereal that has been used as food, but its use still limited. consists of high starch content, native adlay low water absorption capacity and other functional properties. The characteristics can be improved; some them are modified into porous starch. This study aimed to define granules improve the physicochemical properties by synergic modification microwave heat treatment (MHT) ozon...

The anaerobic hybrid reactor consisting of sludge and packed zones was operated with organic pollutant loading rates from 6.2 to 8.2 g COD/L day, composed mainly of suspended solids (SS) and oil and grease (O&G) concentrations between 5.2 to 10.2 and 0.9 to 1.9 g/L, respectively. The overall process performance in terms of chemical oxygen demands (COD), SS, and O&G removals was 73, 63, and 56%,...

The applicability of a sequential process of ozonation and ozone/hydrogen peroxide process for the removal of soluble organic compounds from a pre-coagulated municipal sewage was examined. 6-25% of initial T-CODCr was removed at the early stage of ozonation before the ratio of consumed ozone to removed T-CODCr dramatically increased. Until dissolved ozone was detected, 0.3 mgO3/mgTOC0 (Initial ...

Using microbubble ozonation (MO) technique to disintegrate sludge is a promising treatment process. To enhance the lysis and reduction of sludge, catalytic consisting MO sewage derived char (SC) were combined. Total solids (TS), volatile (VS), total nitrogen phosphate (TN TP) selected as main parameters for evaluating performance both in supernatant. With utilization MO, ozone largely improved....