Automatic Flow Control Valves Solve Raw Water Management Challenges

Opflow ◽  
2021 ◽  
Vol 47 (7) ◽  
pp. 28-29
Author(s):  
Jonathan Sherer ◽  
Jonathan Jones ◽  
Phyllis J. Dretzka
Keyword(s):  
Water Management ◽  
Flow Control ◽  
Raw Water ◽  
Control Valves

Leading the City of Baltimore into the 21st Century: Flexible Treatment Solutions and Integrated Raw Water Management

2010 ◽  
Vol 5 (4) ◽  
Author(s):  
J. L. Manuszak ◽  
M. MacPhee ◽  
S. Liskovich ◽  
L. Feldsher
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Water Supply ◽  
Conceptual Design ◽  
Membrane Filtration ◽  
Treatment Plant ◽  
Low Pressure ◽  
Management Tool ◽  
Raw Water ◽  
The City

The City of Baltimore, Maryland is one of many US cities faced with challenges related to increasing potable water demands, diminishing fresh water supplies, and aging infrastructure. To address these challenges, the City recently undertook a $7M study to evaluate water supply and treatment alternatives and develop the conceptual design for a new 120 million gallon per day (MGD) water treatment plant. As part of this study, an innovative raw water management tool was constructed to help model source water availability and predicted water quality based on integration of a new and more challenging surface water supply. A rigorous decision-making approach was then used to screen and select appropriate treatment processes. Short-listed treatment strategies were demonstrated through a year-long pilot study, and process design criteria were collected in order to assess capital and operational costs for the full-scale plant. Ultimately the City chose a treatment scheme that includes low-pressure membrane filtration and post-filter GAC adsorption, allowing for consistent finished water quality irrespective of which raw water supply is being used. The conceptual design includes several progressive concepts, which will: 1) alleviate treatment limitations at the City's existing plants by providing additional pre-clarification facilities at the new plant; and 2) take advantage of site conditions to design and operate the submerged membrane system by gravity-induced siphon, saving the City significant capital and operations and maintenance (O&M) costs. Once completed, the new Fullerton Water Filtration Plant (WFP) will be the largest low-pressure membrane plant in North America, and the largest gravity-siphon design in the world.

Medtronic CSF Flow Control Valves

2021 ◽  
Vol 51 (8) ◽  
pp. 58-59
Keyword(s):  
Flow Control ◽  
Csf Flow ◽  
Control Valves

Flow Control Valves

2014 ◽  
pp. 635-635
Keyword(s):  
Flow Control ◽  
Control Valves

Runoff pattern of pesticides from paddy fields in the catchment area of Rikimaru reservoir, Japan

1994 ◽  
Vol 30 (7) ◽  
pp. 137-144 ◽  
Author(s):  
O. Nagafuchi ◽  
T. Inoue ◽  
S. Ebise
Keyword(s):  
Water Management ◽  
Linear Correlation ◽  
Irrigation Water ◽  
Catchment Area ◽  
Paddy Fields ◽  
Raw Water ◽  
Irrigation Water Management ◽  
Pesticide Runoff

Patterns of runoff behaviours in concentration and loading of pesticides from paddy fields have been intensively observed in the catchment area of Rikimaru Reservoir, mainly during the regular application period of fungicide during the summer. The runoff characteristics of three pesticides (pyroquilone, isoprothiolane and flutolanil) from paddy fields to the drainage river differed from one another due to their water solubilities. The linear correlation between the water solubilities and the amounts of pesticide runoff loadings from paddy fields to the drainage river and reservoir during dry weather days was confirmed as good on log-log paper. To reduce the risk to raw water for drinking in the reservoir the method of irrigation water management for paddy fields should be improved.

Root Cause Analysis Solves Inoperability Problem with Downhole Flow Control Valves

2015 ◽  
Author(s):  
R. Agarwal ◽  
M. Galiunas ◽  
M. Barrilleaux ◽  
C. Stewart ◽  
M. Burns
Keyword(s):  
Flow Control ◽  
Root Cause Analysis ◽  
Cause Analysis ◽  
Control Valves ◽  
Root Cause

Proportional Hydraulic Flow Control Valves with Simple and Differential Command

2014 ◽  
Vol 658 ◽  
pp. 547-552
Author(s):  
Mihai Avram ◽  
Constantin Bucşan ◽  
Despina Duminică ◽  
Alina Popescu-Cuta
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Original Solution ◽  
Control Valves ◽  
Hydraulic Flow ◽  
Two Systems

The paper brings in an original solution of proportional hydraulic flow control valve, which can function with both simple and differential command. The static adjustment characteristic of this equipment is analyzed. Also, two systems that integrate the discussed equipment are taken into account.

Investigating the dynamics of two herbicides at a karst spring in Germany: Consequences for sustainable raw water management

2014 ◽  
Vol 482-483 ◽  
pp. 193-200 ◽  
Author(s):  
Olav Hillebrand ◽  
Karsten Nödler ◽  
Tobias Geyer ◽  
Tobias Licha
Keyword(s):  
Water Management ◽  
Raw Water ◽  
Karst Spring
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