scholarly journals Configuration of a pilot station in a technological investigation of groundwater treatment

2018 ◽  
Vol 44 ◽  
pp. 00148
Author(s):  
Paweł Pruss ◽  
Alina Pruss ◽  
Małgorzata Komorowska-Kaufman

The purpose of pre-design technological investigations is to define the water treatment technology for a new or existing water treatment plant. The investigation is performed on model-scale equipment, making sure that the results can be extrapolated to the technological scale. The investigation should allow for the determination of unit process parameters and ensure the desired outcome i.e. treated water meeting the applicable quality standards. Indirectly, the investigation results can also be used as a basis for defining the estimated scope of the investment, the costs of its execution and the future equipment operating costs. Technological investigations are carried out on the grounds of existing or future treatment plants in order to take into account the variable composition and quality indicators of the raw water to be treated. The pilot station, being the main element of the technological investigation, should be designed, built and operated with a view to the possibility of formulating further design guidelines after the study is completed. In this article, the authors share their experience related to the configuration of a pilot station used in an investigation of a groundwater treatment technology.

2014 ◽  
Vol 71 (4) ◽  
pp. 638-644 ◽  
Author(s):  
Alina Pruss

A technological investigation was carried out over a period of 2 years to evaluate surface water treatment technology. The study was performed in Poland, in three stages. From November 2011 to July 2012, for the first stage, flow tests with a capacity of 0.1–1.5 m3/h were performed simultaneously in three types of technical installations differing by coagulation modules. The outcome of the first stage was the choice of the technology for further investigation. The second stage was performed between September 2012 and March 2013 on a full-scale water treatment plant. Three large technical installations, operated in parallel, were analysed: coagulation with sludge flotation, micro-sand ballasted coagulation with sedimentation, coagulation with sedimentation and sludge recirculation. The capacity of the installations ranged from 10 to 40 m3/h. The third stage was also performed in a full-scale water treatment plant and was aimed at optimising the selected technology. This article presents the results of the second stage of the full-scale investigation. The critical treatment process, for the analysed water, was the coagulation in an acidic environment (6.5 < pH < 7.0) carried out in a system with rapid mixing, a flocculation chamber, preliminary separation of coagulation products, and removal of residual suspended solids through filtration.


1991 ◽  
Vol 23 (10-12) ◽  
pp. 1961-1968 ◽  
Author(s):  
T. Aoki ◽  
H. Oguro ◽  
K. Fujiyoshi ◽  
M. Yamamoto

A method without any reagent for the determination of ultra-trace aqueous ozone, utilizing a glass tube-separation process and a thin film semiconductor, is proposed. The glass tube was used as the separator to transfer ozone from water into a gas phase. Ozone was transferred into clean air flowing in the tube and then was continuously monitored at the thin film semiconductor. Signals were proportional to concentration of aqueous ozone more than 5 µ g/L. The relative standard deviation (n = 7) las 3.8 % at 7.6 µ g/L. The interference from hydrogen peroxide, mono-chloramine, and dichloramine, was completely eliminated. The present method was applied to an advanced water treatment pilot-plant incorporating two parallel treatment trains and was examined for its potential for monitoring aqueous ozone in treatment processes.


Al-Khidmah ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 24
Author(s):  
RM Rustamaji ◽  
Kiki Prio Utomo ◽  
Hendri Sutrisno

An-Nur and Darussalam Boarding School use well water for bathing, washing and latrines (MCK). However, well water contains high levels of iron and manganese. Therefore, it's needed clean water treatment technology. The water treatment system consists of aeration, adsorption, and filtration. The purpose of PKM is to provide clean water for partners. The method is a participatory and collaborative method whereby partners participate in planning, socialization and training, and operation and maintenance of water treatment plant. The PKM product is easy-to-use water treatment plant and the processed water is odorless, not turbid and colorless or clear. The main key to the success of clean water treatment PKM in An-Nur and Darussalam Boarding School is good communication and smoothly between PKM team and partners.


2002 ◽  
Vol 2 (5-6) ◽  
pp. 185-191
Author(s):  
T. Hanamoto ◽  
D. Nagashio ◽  
T. Sasaki

The Hanshin Water Supply Authority (HWSA) supplies drinking water to approximately 2.4 million consumers in the Hanshin area, including the city of Kobe. The HWSA has completed a project integrating two aging plants into a new water treatment plant (Amagasaki WTP) with a capacity of 373,000 m3 per day. The Amagasaki WTP has three significant special merits: water treatment, environmental, and information technology. The water treatment system is based on a multiple-barrier concept that estimates the value of water treatment technology not by individual processes, but by the overall performance of the system. The treatment train consists of coagulation/sedimentation, ozonation/activated carbon fluidized-bed adsorption, and coagulation/high-rate filtration, most of which fully utilize upward-flow. The key environmental technology characteristic of the new WTP is its achievement of zero-emissions. This design reduces CO2 discharge from the plant, as well as making it possible to completely recycle the sludge as an alternate material of agricultural and horticultural soils. Improvement of customer relations is a feature of the information technology. The authority provides information on the safety of the finished drinking water, watershed management, and the maintenance of source water quality. A visitors' area and emergency water supply facility for use in disasters have also been set up at the WTP. The Amagasaki WTP started commercial operation in April 2001. The completion of this renovated plant will significantly raise the quality of service to the customers.


1988 ◽  
Vol 37 (11) ◽  
pp. T181-T186
Author(s):  
Koji YAMAGAKI ◽  
Tadashi TAKAHASHI ◽  
Keio YAMADA ◽  
Michinao YOSHII ◽  
Toshio SUZUKI

2013 ◽  
Vol 652-654 ◽  
pp. 1688-1691
Author(s):  
Long Chen ◽  
Gui Fu Zheng ◽  
De Chao Ran

Coagulation-flocculation process as an important water treatment technology has been widely used in the water treatment plant. The technology has been applied to the wastewater treatment, in general, by addition of a certain amount of chemical into the aquatic environment to make colloids destabilization and aggregation based on neutralization and adsorption bridging role. The conventional aluminum-based coagulant has been extensively studied. As a viable opinion, iron-based coagulant has attracted a wide attention. The objective of this research was aimed to investigate the preparation process of the iron-based coagulant using hydrogen peroxide as oxidizing agent. Parameters such sulfate dosage and hydrogen peroxide were analyzed. The results showed that a flocculant with the total iron mass percentage of 9.47 % and density of 1.43 g/mL was obtained. The flocculation test showed better performance.


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