scholarly journals PO*WW*ER mobile treatment unit process hazards analysis

1996 ◽  
Author(s):  
R.B. Richardson
Keyword(s):  
Treatment Unit ◽  
Unit Process ◽  
Process Hazards

scholarly journals Model Analisis Sistem Pengolahan Limbah lndustri Tekstil Menggunakan Bioflokulan Moringa Oleifera Lam.

2018 ◽  
Vol 6 (1) ◽  
pp. 21-32
Author(s):  
Sukarsono Sukarsono
Keyword(s):  
Waste Water ◽  
Moringa Oleifera ◽  
Target Number ◽  
Treatment Unit ◽  
Textile Production ◽  
Chemical Substances ◽  
Unit Process ◽  
Textile Factory ◽  
The Impact ◽  
Moringa Oleifera Lam

Waste water from textile factories classified into dangerous water as regulated by the Ministry of Environment. This waste water usually flows away into the river environment around of factories. Water treatment unit of textile factory believed as an external unit process which need big budget consequences because it might use imported chemical substances. This situation usually use as a common reasons to pollute the environment. This research is a model solution to reduce a fix budget (cost production) in textile production by using a number of Moringa oleifera as a biofloculant to replace an expensive chemical substances as PAC. This model showed the  number of biofloculant at every target number of production and the impact into amount of sludge and water. Linear model commonly found in every stage of simulation. This research showed what kind of preparation needed by environmental factory manager. 

scholarly journals Evaluation of virus reduction efficiency in wastewater treatment unit processes as a credit value in the multiple-barrier system for wastewater reclamation and reuse

2016 ◽  
Vol 14 (6) ◽  
pp. 879-889 ◽  
Author(s):  
Toshihiro Ito ◽  
Tsuyoshi Kato ◽  
Makoto Hasegawa ◽  
Hiroyuki Katayama ◽  
Satoshi Ishii ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Quantitative Polymerase Chain Reaction ◽  
Virus Concentration ◽  
Secondary Treatment ◽  
Wastewater Reclamation ◽  
Treatment Unit ◽  
Unit Process ◽  
Chlorine Disinfection ◽  
Wastewater Reclamation And Reuse ◽  
Reduction Efficiency

The virus reduction efficiency of each unit process is commonly determined based on the ratio of virus concentration in influent to that in effluent of a unit, but the virus concentration in wastewater has often fallen below the analytical quantification limit, which does not allow us to calculate the concentration ratio at each sampling event. In this study, left-censored datasets of norovirus (genogroup I and II), and adenovirus were used to calculate the virus reduction efficiency in unit processes of secondary biological treatment and chlorine disinfection. Virus concentration in influent, effluent from the secondary treatment, and chlorine-disinfected effluent of four municipal wastewater treatment plants were analyzed by a quantitative polymerase chain reaction (PCR) approach, and the probabilistic distributions of log reduction (LR) were estimated by a Bayesian estimation algorithm. The mean values of LR in the secondary treatment units ranged from 0.9 and 2.2, whereas those in the free chlorine disinfection units were from −0.1 and 0.5. The LR value in the secondary treatment was virus type and unit process dependent, which raised the importance for accumulating the data of virus LR values applicable to the multiple-barrier system, which is a global concept of microbial risk management in wastewater reclamation and reuse.

Removal Efficiencies of Microorganisms in Wastewater Treatment Processes

1993 ◽  
Vol 28 (7) ◽  
pp. 55-61 ◽  
Author(s):  
Tsuyoshi Hirata ◽  
Kiyoshi Kawamura ◽  
Kazuyoshi Yano ◽  
Mitsumi Kaneko ◽  
Takeo Moniwa ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Unit ◽  
Total Coliforms ◽  
Unit Process ◽  
Treatment Processes ◽  
Indicator Microorganism ◽  
Removal Efficiencies ◽  
Almost All ◽  
Microorganism Removal

The removal characteristics of indigenous microorganisms in wastewater treatment unit processes were studied at five operating wastewater treatment plants. The removal efficiencies of the selected microorganisms in each unit process were dependent upon not only the systems but also the kinds of microorganisms. In almost all processes, the removal efficiencies of total coliforms were similar to or higher than those of Clostridium perfringens except for filtration processes. In the additional survey, focussed on the comparison of removal efficiencies of total coliforms, Cl. perfringens and coliphages, little difference was found between CL perfringens and coliphages. From these results, it may be suggested that CL Perfringens is an effective indicator microorganism for evaluating microorganism removal in wastewater treatment processes and systems.

An Acute Inpatient Geriatric Assessment and Treatment Unit

1987 ◽  
Vol 3 (1) ◽  
pp. 119-129 ◽  
Author(s):  
David B. Wooldridge ◽  
Gloria Parker ◽  
Patricia A. MacKenzie
Keyword(s):  
Geriatric Assessment ◽  
Treatment Unit ◽  
Assessment And Treatment

To the issue of water treatment by hydrocyclone on the systems of the combined irrigation

2020 ◽  
Vol 0 (2) ◽  
pp. 21-25
Author(s):  
Nikolay Dubenok ◽  
Andrey Novikov ◽  
Sergei Borodychev ◽  
Maria Lamskova
Keyword(s):  
Water Treatment ◽  
Organic Compounds ◽  
Irrigation Water ◽  
Irrigation System ◽  
Petroleum Products ◽  
Cylindrical Part ◽  
Agricultural Landscapes ◽  
Treatment Unit ◽  
Drain Pipe ◽  
Irrigation Network

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.

Bulk water treatment unit performance: For the cameras or the community?

Waterlines ◽  
2012 ◽  
Vol 31 (1-2) ◽  
pp. 53-66 ◽  
Author(s):  
Richard Luff ◽  
Caetano Dorea
Keyword(s):  
Water Treatment ◽  
Bulk Water ◽  
Treatment Unit ◽  
Unit Performance

Advanced Vehicle Parking System using PLC and SCADA

2019 ◽  
Vol 8 (6S2) ◽  
pp. 467-470
Keyword(s):  
Open Space ◽  
Organization Structure ◽  
General System ◽  
General Control ◽  
Control Center ◽  
Unit Process ◽  
Basic Goal ◽  
Parking Lot ◽  
Access Information ◽  
The Right

This work is to perceive the open space in the halting reach using PLC and SCADA. The rule target is to recognize the unfilled space and demonstrating the driver to a particular opening. This paper tries to layout and execute an electronic stopping region organization structure. Robotized Parking Lot Management System is a totally utilitarian and painstakingly controlled parking structure organization system that is executed with the usage and compromise of different electronic equipment and littler scale figuring. The layout incorporates assorted stages, from the rule unit; process is passed on to different subunits to achieve the target of full motorization. A moving toward auto will pass on (through the driver) remotely with the essential unit associated with the Parking Office Gate. The essential unit will check the transmitted access information and will pass control after affirmation to the gateway framework drivers, this in this way drives the right entryway control (either exit or segment unit). The system currently screens the development of the driver some time later, and for entry, as the driver moves a destined eparation into the workplace ,the system turns back the entryway segment (for finish of entryway) and passes control to the space part and organization unit. The objective of this later unit is to manage the parking spaces available in the package by watching the development of the automobiles inside, allocating the spaces in a precise manner, watching consistence what's more, prompt the general control center (watched out for) of the space(s) open. It has a show interface for talking with the customers of the workplace. There is in like manner a control center that is watched out for by work power and screens the activities inside the parking structure. It is educated regarding any development, space(s) open and moreover the general system can be shut down or changed on from the control center. The basic goal of this errand is to achieve full motorization and it will find snappy use in tremendous workplaces with different access restrictions, government properties, and school grounds to sectionalize educator's auto stop and understudy's auto stop, etc.

Sanitation and antiepidemic practice in Chinese Ebola Treatment Unit in Liberia

2015 ◽  
Vol 36 (8) ◽  
pp. 818
Author(s):  
Ming-hui XIE ◽  
Wu YANG ◽  
Quan ZHOU ◽  
Yi LIU ◽  
Ze-gang YIN ◽  
...  
Keyword(s):  
Treatment Unit
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