Activated Sludge Respiration Articles & Analysis
13 articles found
Introduction Respirometry is the measurement and interpretation of the biological oxygen consumption rate under well defined experimental conditions. Because oxygen consumption is directly associated with both biomass growth and substrate removal, respirometry is a very useful technique for monitoring, modeling and control of the activated sludge process The Respirometry technology is a well ...
The function of the aerobic tank is to allow the activated sludge to perform aerobic respiration, further decompose organic matter into inorganic matter, and remove pollutants. ...
Data from IUCLID also reveal that ciliate toxicity data are supplementary to those of the standard activated sludge respiration inhibition. Ciliate tests could hence serve as a powerful tool for the prediction of possible hazards to sewage treatment ...
This oversight can likely be attributed to a simplifying notion that CO2 produced through activated-sludge-process respiration is biogenic because most raw-sewage carbon is un-sequestered prior to entering a WWTP. ...
The inhibition of activated sludge respiration is one of the most important parameters for monitoring wastewater toxicity. The main objective of this study was to improve respiration inhibition testing in order to protect the biological degradation within the aerobic process in a wastewater treatment plant more efficiently. ...
Biotechnological production of pharmaceutical active substances needs ancillary substances. Surfactants are used at the end of the cell culture as a protection against potential viral or bacterial contamination and to lyse the producing cells for isolation and purification of the products. ...
ABSTRACT Many wastewater treatment plants use more than 50% of their total energy budget in the aeration basin and, when nutrient removal is included in the activated sludge process, it is very common that the majority of oxygen uptake goes to the nitrification process. For that reason, in most wastewater treatment plants, energy optimization is focused on nitrification management. This ...
The guidelines of Activated Sludge Model (ASM) can make the use of modeling more straightforward and systematical. Therefore, this paper aims to develop a guideline for wastewater COD characterization. Four physical-chemical methods were compared experimentally for wastewater characterization in this paper and flocculation + 0.45 μm membrane filtration combining respirometry was selected to ...
When attached biomass increased, the cell synthesis part of oxygen utilisation coefficient gradually decreased and that for endogenous respiration increased.Keywords: activated sludge, hybrid bioreactors, shaft-type bioreactor, tyre-tube beads, distillery wastewater, post-anaerobic effluent, wastewater treatment, pollution control, environmental ...
In order to study the minimization of excess sludge production, the reduction in the excess sludge production in the presence of an inhibitor and uncoupler was studied in this work. The experimental results show that such an addition could effectively reduce the production of excess sludge. With the energy uncoupling model established in this ...
A detailed characterisation of the incoming wastewater and a performance evaluation were carried out for the domestic wastewater treatment plant of Erzincan City. Conventional characterisation results showed that Erzincan has a medium strength wastewater quality. Structural characterisation of the chemical oxygen demand (COD) indicated that the biodegradable fraction of the total COD was 64.7%. ...
Untitled Document Avecia is now using the Strathkelvin Activated Sludge Respirometer in its effluent management programme, at its Grangemouth site. Avecia was formed by a buyout of the speciality chemicals section of AstraZeneca in 1999. It now operates from 28 sites worldwide. Grangemouth is the main manufacturing site in the UK, specialising in fine ...
In order to achieve this, it is necessary to focus on the pivotal role of bacterial respiration in the aerobic treatment process. The importance of respiration in this context is that it is quickly and easily measurable. ...