A5040837938- Wastewater Treatment and Reuse
- Wastewater Treatment and Nitrogen Removal
- Water Quality and Pollution Assessment
- Geography and Environmental Studies
- Constructed Wetlands for Wastewater Treatment
- Environmental Chemistry and Analysis
- Water-Energy-Food Nexus Studies
- Environmental Sustainability and Education
- Membrane Separation Technologies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Water Treatment and Disinfection
- Academic Research in Diverse Fields
- Water Quality Monitoring and Analysis
- Business and Management Studies
- Soil erosion and sediment transport
- Environmental Toxicology and Ecotoxicology
- Nuclear reactor physics and engineering
- Water Resource Management and Quality
- Recycling and Waste Management Techniques
- Advanced oxidation water treatment
- Graphite, nuclear technology, radiation studies
- Pesticide and Herbicide Environmental Studies
- Pharmaceutical and Antibiotic Environmental Impacts
- Dye analysis and toxicity
- Composting and Vermicomposting Techniques
Universidade de São Paulo
1977-2020
Universidade Politecnica
2011-2020
Colciencias
2011
Universidade Federal da Bahia
2011
Universidade Brasil
2011
Universidade Estadual Paulista (Unesp)
2009
This study has investigated the biological nitrogen removal by simultaneous nitrification and denitrification (SND) processes in a system of continuous flow activated sludge (AS) process. The investigation had four stages evaluated behavior under different solid retention times (SRT), food-to-mass (F/M) ratios dissolved oxygen (DO) concentrations. data showed that concentration DO 0.5±0.2 mgO2/L did not affect growth heterotrophic bacteria (2.2–3.1 d−1 at 20°C) autotrophic nitrifying...
A laboratory scale activated sludge sequencing batch reactor was operated in order to obtain total removal of influent ammonia (200; 300 and 500 mg NH3-N.L-1) with sustained nitrite accumulation at the end aerobic stages phenol (1,000 C6H5OH.L-1) as carbon source for denitrifying microorganisms during anoxic stages. Ammonia above 95% ratios (NO2--N / + NO3--N)) ranging from 89 99% were obtained by controlling dissolved oxygen concentration (1.0 O2.L-1) pH value 8.3 Phenol proved be an...
O presente artigo objetivou avaliar a aplicação da operação de stripping como pré-tratamento um lixiviado aterro sanitário visando à redução carga amônia afluente sistema biológico tratamento, bem como, utilização do processo coagulação-floculação-sedimentação para remoção matéria orgânica recalcitrante pré-tratado em lodo ativado. As taxas nitrogênio amoniacal variaram entre 3,5 e 3,6 mg N-NH3.L-1.h-1 o composto por reator submetido agitação mecânica 3,2 3,3 aeração com bolhas grossas....
The sludge generated by sewage treatment which meets regulatory standards can be used in agriculture. With this understanding, the focus of study is evaluation agricultural characteristics and inorganic substances excess activated sludge, was subjected to drying a greenhouse. variables (factor) evaluated during process were: type (digested or not digested), addition lime physical layout rotation parameters monitored for assessment were moisture, volatile solids pH. greenhouse cover sides...
Anaerobic treatment, such as the Upflow Sludge Blanket - UASB has many advantages: a compact system, with practically no equipment in anaerobic vessel, low operational costs, very energy consumption, and excess sludge produced. However, taking into account its poor effluent quality, legal water quality standards, post treatment is must. Brazil experiencing scheme plus aerobic secondary aiming reduction investment mainly excellent results. Three cases are discussed this paper: two small...
O objetivo deste estudo foi avaliar os efeitos da presença de suportes plásticos móveis (carriers) no processo lodo ativado por meio operação, sob diferentes tempos retenção sólidos para remoção matéria carbonácea e nitrogênio, dois sistemas aeróbios. Um deles, denominado LAC, constituído reatores com biomassa apenas em suspensão, comparado outro, LAI, integrados biofilme leito móvel. Monitorou-se o crescimento das biomassas suspensão aderida as condições ambientais nos reatores. Testes...
At the São Paulo Metropolitan Area, sludge resulting from treatment of electroplating industry wastewater is inadequately disposed of, generating environmental hazards. A possible way to solve this problem cementation before disposal. From July,1986 March, 1987, authors developed laboratory tests on sludges. Performed at laboratories Escola Politécnica University and CETESB, were conducted with three types cement produced in Brazil - CPC Portland Cement, POZ-pozzolanic CAF blast furnace...