Control of corrosive water in advanced water treatment plant by manipulating calcium carbonate precipitation potential

2009 ◽  
Vol 26 (1) ◽  
pp. 90-101 ◽  
Author(s):  
Do-Hwan Kim ◽  
Jae-Hwan Cha ◽  
Soon-Heon Hong ◽  
Dong-Youn Kim ◽  
Chang-Won Kim
Keyword(s):  
Calcium Carbonate ◽  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Carbonate Precipitation ◽  
Calcium Carbonate Precipitation

scholarly journals The influence of electromagnetic fields from two commercially available water-treatment devices on calcium carbonate precipitation

2017 ◽  
Vol 3 (3) ◽  
pp. 566-572 ◽  
Author(s):  
C. Piyadasa ◽  
T. R. Yeager ◽  
S. R. Gray ◽  
M. B. Stewart ◽  
H. F. Ridgway ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Calcium Carbonate ◽  
Water Treatment ◽  
Electromagnetic Fields ◽  
Carbonate Precipitation ◽  
Pulsed Electromagnetic Field ◽  
Calcium Carbonate Precipitation ◽  
Available Water ◽  
Pulsed Electromagnetic

CaCO3 precipitation profiles, tracked by absorbance at 350 nm, showing accelerated precipitation upon exposure of the parent solutions to a pulsed electromagnetic field (PEMF) from a commercially available device.

scholarly journals Sustainable Ecological Restoration of Sterile Dumps Using Robinia pseudoacacia

2021 ◽  
Vol 13 (24) ◽  
pp. 14021
Author(s):  
Adriana Mihaela Chirilă Băbău ◽  
Valer Micle ◽  
Gianina Elena Damian ◽  
Ioana Monica Sur
Keyword(s):  
Calcium Carbonate ◽  
Water Treatment ◽  
Metal Uptake ◽  
Robinia Pseudoacacia ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Neutral Medium ◽  
Optimal Point ◽  
Mining Areas ◽  
High Concentrations

The feasibility of using Robinia pseudoacacia in phytoremediation of sterile dumps was determined. The potential of Robinia pseudoacacia seeds to grow in a medium contaminated with high concentrations of Pb, Cd, and Cu was firstly evaluated by applying germination tests on acacia seeds in the presence of various extractants prepared by mixtures of sterile material (SM) collected from the “Radeș” dump (Romania), calcium carbonate (CaCO3) and dehydrated sludge (DS) from Someș Water Treatment Plant (Cluj Napoca, Romania), fertilizer (N.P.K.), and potassium monobasic phosphate (KH2PO4-99.5%). The results indicated that Robinia pseudoacacia seeds grow much better in an acidic than in a neutral medium and in the absence of carbonates. The capacity of metal uptake from SM by Robinia pseudoacacia and the development of the plants were then investigated at the laboratory scale. During the phytoremediation process, 92.31% of Cu was removed from SM, and the development of the Robinia pseudoacacia plants was favorable. However, although the results of the present study indicated that Robinia pseudoacacia can be successfully used in the phytoremediation of sterile dumps, making a sustainable decision for the current situation of sterile dumps located in mining areas may be difficult because an optimal point between people, profit, planet, and diverse ethical views must be found.

DESIGNING OF REMOTE TERMINAL UNIT (RTU) FOR MEASUREMENT OF pH IN WATER TREATMENT PLANT

2019 ◽  
Vol 10 (1) ◽  
pp. 16
Author(s):  
V. MANE-DESHMUKH PRASHANT ◽  
B. MORE ASHWINI ◽  
B. P. LADGAOKAR ◽  
S. K. TILEKAR ◽  
◽  
...  
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Terminal Unit ◽  
Remote Terminal ◽  
Remote Terminal Unit

ENHANCED COAGULATION FOR ALGAE REMOVAL IN A TYPICAL ALGERIA WATER TREATMENT PLANT

2017 ◽  
Vol 16 (10) ◽  
pp. 2303-2315 ◽  
Author(s):  
Djamel Ghernaout ◽  
Abdelmalek Badis ◽  
Ghania Braikia ◽  
Nadjet Mataam ◽  
Moussa Fekhar ◽  
...  
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Enhanced Coagulation ◽  
Algae Removal

Sadr City R3 Water Treatment Plant Baghdad, Iraq

2008 ◽  
Author(s):  
Angelina Johnston ◽  
Kevin O'Connor ◽  
Todd Criswell
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant

Water treatment to reduce internal corrosion in the drinking water distribution system in Oslo

2001 ◽  
Vol 1 (3) ◽  
pp. 91-96 ◽  
Author(s):  
L.J. Hem ◽  
E.A. Vik ◽  
A. Bjørnson-Langen
Keyword(s):  
Water Treatment ◽  
Corrosion Rate ◽  
Distribution System ◽  
Water Distribution ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Corrosion Monitoring ◽  
Copper Corrosion ◽  
Iron Corrosion ◽  
Internal Corrosion

In 1995 the new Skullerud water treatment plant was put into operation. The new water treatment includes colour removal and corrosion control with an increase of pH, alkalinity and calcium concentration in addition to the old treatment, which included straining and chlorination only. Comparative measurements of internal corrosion were conducted before and after the installation of the new treatment plant. The effect of the new water treatment on the internal corrosion was approximately a 20% reduction in iron corrosion and a 70% reduction in copper corrosion. The heavy metals content in standing water was reduced by approximately 90%. A separate internal corrosion monitoring programme was conducted, studying the effects of other water qualities on the internal corrosion rate. Corrosion coupons were exposed to the different water qualities for nine months. The results showed that the best protection of iron was achieved with water supersaturated with calcium carbonate. Neither a high content of free carbon dioxide or the use of the corrosion inhibitor sodium silicate significantly reduced the iron corrosion rate compared to the present treated water quality. The copper corrosion rate was mainly related to the pH in the water.

Cost-effective water treatment of polluted surface water by using direct filtration and granular activated carbon filtration

2002 ◽  
Vol 2 (1) ◽  
pp. 233-240 ◽  
Author(s):  
J. Cromphout ◽  
W. Rougge
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Treatment Process ◽  
Treatment Plant ◽  
Granular Activated Carbon ◽  
Cost Effective ◽  
Water Treatment Plant ◽  
Direct Filtration ◽  
Carbon Filtration ◽  
Effective Water

In Harelbeke a Water Treatment Plant with a capacity of 15,000 m3/day, using Schelde river water has been in operation since April 1995. The treatment process comprises nitrification, dephosphatation by direct filtration, storage into a reservoir, direct filtration, granular activated carbon filtration and disinfection. The design of the three-layer direct filters was based on pilot experiments. The performance of the plant during the five years of operation is discussed. It was found that the removal of atrazin by activated carbon depends on the water temperature.

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