Reactor period

The application of SBR in the treatment and nutrient recovery of sludge from the ISF can be a potential technical alternative to current technologies in the management of sludge. The objective of this study was to evaluate the removal efficiencies and recovery performance of nitrogen, carbon, and phosphorus (P) in sludge from the intensive whiteleg shrimp ponds under different sequences of react periods (aerobic/ anoxic).

10p vimichaelfaraday 28-12-2023 5 2   Download

Municipal wastewater treatment plants generally utilise biological activated sludge processes to remove organic compounds and nitrogen. The biological nitrogen removal (BNR) occurs in two steps, nitrification (ammonium removal) and denitrification (nitrates removal). This study focused on a medium-sized wastewater treatment plant (WTP) which experienced poor nitrification for years, mainly when the weather temperature drops.

125p runthenight07 01-03-2023 5 2   Download

This paper introduces a digital reactivity meter module based on solving the inverse kinetics equations and the time behavior of the output pulse frequency from the amplifier that is proportional to the reactor power of the Dalat nuclear research reactor (DNRR).

5p vicedric 08-02-2023 6 4   Download

This paper presents the development and verification of a deterministic model using the SRAC code system for analysing the criticality and control rod worth of the Dalat Nuclear Research Reactor (DNRR). Numerical calculations were performed based on seven core configurations established experimentally during the startup period of the DNRR.

7p vicedric 08-02-2023 4 3   Download

This study deals with the feasibility study of a new in-vessel core melt retention (IVCMR) strategy capable to extend the coping period in the event of adverse situations, involving the melting of the core. Since Fukushima accident, many studies have been carried out to resolve the severe accident mitigation issues related to the corium stabilization inside and outside the reactor vessel.

8p vironald 15-12-2022 14 5   Download

This paper introduces a new controller module based on a high-speed field-programmable gate array (FPGA) and digital signal processing (DSP) using moving average (MA) filters for calculation of the reactor power and period at the start range of the Dalat nuclear research reactor (DNRR).

8p trinhthamhodang1218 14-03-2021 12 2   Download

Scenario studies simulate the whole fuel cycle over a period of time, from extraction of natural resources to geological storage. Through the comparison of different reactor fleet evolutions and fuel management options, they constitute a decision-making support.

15p christabelhuynh 30-05-2020 18 0   Download

This process periodically speeds up the corrosion of the zirconium cladding in the aqueous coolant due to the breakaway of the dense part of oxide scale when its thickness reaches 2 mkm. It is shown that the electronic resistivity of zirconia is not limiting the zirconium oxidation at working temperatures.

5p christabelhuynh 30-05-2020 10 1   Download

This research investigates the synthesis of biogas from vegetable wastes through anaerobic digestion in batch reactors. The batch test was carried out for a period of 9 weeks, during which the volume of biogas produced from the reactor ad its methane content, was measured. A laboratory test with 2.5 L bio digester was operated in batch system for the study. The feed material for biogas was a mixture of vegetable wastes which include carrots, tomato, potato and cabbage. The biogas production of the period of the study decreased from a volume of 2015 ml to 235 ml in the ninth week.

6p trinhthamhodang1212 06-04-2020 11 1   Download

The present investigation was carried out in Renewable Energy Laboratory of the Department of Renewable and Bio Energy Engineering, College of Agriculture Engineering & Technology, CCS Haryana Agriculture University, Hisar. Biogas production was recorded for 70 days (ten weeks) in batch type digestion. Anaerobic digestion of fresh cattle dung (CD) and paddy straw (PS) in different ratio was carried out under batch system. Paddy straw was mixed with cattle dung in different percentage 5%, 7%, 15%, 22.5% and one control. Methane content in all the reactors varied between 60-62%.

8p trinhthamhodang3 12-02-2020 26 0   Download

Hydrothermal Carbonization is a thermochemical conversion process in which a biomass is processed under hot compressed air to form carbon rich products called as hydrochar. Hydrochar is a hydrophobic, condensed and friable solid product with a fuel property similar to conventional non-renewable energy sources like coal and lignite.

8p chauchaungayxua3 07-02-2020 13 0   Download

The cassava starch production in India is mainly concentrated in small to medium scale factories, which generates 30,000 to 40,000 liters of effluent per tonne of sago produced. The effluent from these industries is acidic and highly organic in nature having COD of 5000 to 7000 mg/l during the season and 1000 to 5000 during the off-season. These effluents pose a serious threat to the environment and quality of life in the both rural and cities.

8p nguaconbaynhay3 07-02-2020 18 0   Download

Appropriate start-up of an anaerobic baffled reactor (ABR) is considered to be the most delicate and important issue in the anaerobic process, and depends on several factors such as wastewater composition, reactor configuration, inoculum and operating conditions.

5p mentospurefresh 29-11-2019 16 0   Download

The work included inspection of the equipment conditions, calculations and experimental research on operating parameters and the conditions of nonremovable components, investigation of the structural material samples after their long-term operation under irradiation, etc. Based on the results of the work performed, the residual lifetime was evaluated and the reactor operator made a decision to extend the lifetime period of the BOR-60 reactor

7p minhxaminhyeu5 30-06-2019 14 1   Download

In a fed-batch reactor, fresh media is continuous or sometimes periodically added but there is no continuous removal. The fermenter is emptied or partially emptied when reactor is full or fermentation is finished. It is possible to achieve high productivities due to the fact that controlling the flow rate of the feed entering the reactor can optimize the growth rate of the cells.

52p giangvan 06-05-2017 44 7   Download