The lab-scale upflow anaerobic biofilm reactor was successfully operated for the treatment of synthetic wastewater with high nitrogen load by Anammox (anaerobic ammonium oxidation) process. During the entire period of operation, the reactor temperature was kept at 35±1°C. The operational strategy consisted of both increasing the ammonium and nitrite concentrations from 60 to 700mgN/L and from 8...

Nowadays, reactor runaway is still a crucial phenomen from the safety viewpoint. About 120 scientific journal articles are published every year in last decade which thermal keyword. The possible cause and consequences of adressed where worst case explosion reactor. Prevention steps to avoid development include appropriate design reactor, operation strategy an early warning detection system. ava...

Background: Slaughterhouse wastewater (SWW) is hardly treated due to the large amount of organic matter, nutrients and suspended solids. These materials are naturally decomposed through biological processes, and then environmental pollution, transmission of pathogens and problems become smelled. Conventional purification methods require high investment costs, high energy consumption and expert ...

Background and purpose:Moving Bed Biofilm Reactor is an aerobic attached growth with better biofilm thickness control, lack of plugging and lower head loss. Consequently, this system is greatly used by different wastewater treatment plants. High TDS wastewater produced petrochemical, leather tanning, sea food processing, cannery, pickling and dairy industries. The aim of this study was to evalu...

Abstract: We consider a feedback control problem of first-order coupled hyperbolic partial integrodifferential equations with distributed and boundary inputs. As the distributed inputs to the system, the output feedback control is first applied under zero boundary inputs. Then, we apply a backstepping method to the design of the boundary inputs. Our main result shows that, for any initial data ...

The application of MSBR in wastewater treatment including its principal base, operational instruction and technical feature are presented. As a newly developed modified SBR (Sequential Batch Reactor) MSBR has the advantages of both SBR and conventional activated active sludge processes. Both the primary and secondary sedimentation tanks can be omitted and continuous operation with full filling ...

This work concerns the synthesis of discrete-time nonlinear controllers for nonlinear processes that make the closed-loop system linear in an input/output sense. The synthesis of state feedback controllers is studied first, followed b.y the synthesis of dynamic output feedback controllers. Both problems are solved within the globally linearizing control ( GLC) framework. Precise theoretical con...

In this study, we investigated the efficiency of dissolved methane (D-CH(4)) collection by degasification from the effluent of a bench-scale upflow anaerobic sludge blanket (UASB) reactor treating synthetic wastewater. A hollow-fiber degassing membrane module was used for degasification. This module was connected to the liquid outlet of the UASB reactor. After chemical oxygen demand (COD) remov...

Relative to coal fired and natural gas fired power plants, nuclear power plants are more expensive to build but less expensive to run. This annex describes advanced construction methods to reduce nuclear power's construction costs, mainly by shortening the time needed to build a plant. Each of the methods described below has been used in one or more of the projects listed in Table IV-1. None is...