The Trade-off Between Environmental Impacts in Water Recycling Systems Using Industrial Effluent

2014 ◽  
Vol 18 (5) ◽  
pp. 771-783 ◽  
Author(s):  
Matthew O'Connor ◽  
Gil Garnier ◽  
Warren Batchelor
Keyword(s):  
Environmental Impacts ◽  
Industrial Effluent ◽  
Water Recycling ◽  
Trade Off ◽  
Recycling Systems

Polyacrylic acid and formulations based on it as inhibitors of deposit formation in water-recycling systems

2009 ◽  
Vol 82 (10) ◽  
pp. 1894-1897
Author(s):  
I. V. Shestak ◽  
E. V. Vorob’eva ◽  
I. I. Basalyga ◽  
N. P. Krut’ko ◽  
A. D. Vorob’ev
Keyword(s):  
Polyacrylic Acid ◽  
Water Recycling ◽  
Deposit Formation ◽  
Recycling Systems

A concept for the development of invariant automated electric drives for water recycling systems with fan cooling towers

2007 ◽  
Vol 78 (11) ◽  
pp. 621-627 ◽  
Author(s):  
N. V. Kiyanov ◽  
O. V. Kryukov ◽  
D. N. Pribytkov ◽  
A. V. Gorbatushkov
Keyword(s):  
Cooling Towers ◽  
Water Recycling ◽  
Electric Drives ◽  
Fan Cooling ◽  
Recycling Systems

scholarly journals The study of inhibiting structural material corrosion in water recycling systems by sodium hydroxide

2017 ◽  
Vol 2 (1 (86)) ◽  
pp. 21-28 ◽  
Author(s):  
Alexei Pilipenko ◽  
Hanna Pancheva ◽  
Anna Reznichenko ◽  
Oksana Myrgorod ◽  
Nataliya Miroshnichenko ◽  
...  
Keyword(s):  
Structural Material ◽  
Sodium Hydroxide ◽  
Water Recycling ◽  
Recycling Systems

scholarly journals Water Consumption in the Belarusian Woodland

2018 ◽  
Author(s):  
Keyword(s):  
Water Resources ◽  
Water Consumption ◽  
Water Saving ◽  
Water Recycling ◽  
Water Losses ◽  
Recycling Systems

The paper presents the results of researches of the Belarusian Woodland water consumption over the period from 2000 to 2015. We have made a conclusion about relatively low effectiveness of the water resources use and have shown the necessity of rational water consumption due to introduction of water-saving techniques, water recycling systems, as well as minimization of water losses during transportation.

Optimization of environmental impacts of construction projects: a time–cost–quality trade-off approach

2020 ◽  
Author(s):  
S. A. Banihashemi ◽  
Mohammad Khalilzadeh ◽  
A. Shahraki ◽  
M. Rostami Malkhalifeh ◽  
S. S. R. Ahmadizadeh
Keyword(s):  
Environmental Impacts ◽  
Construction Projects ◽  
Time Cost ◽  
Trade Off

Water Recycling Systems

1982 ◽  
Vol 14 (9-11) ◽  
pp. 1393-1429 ◽  
Author(s):  
R D Heaton
Keyword(s):  
Environmental Protection Agency ◽  
Water Reuse ◽  
Municipal Wastewater ◽  
Wastewater Reuse ◽  
Water Recycling ◽  
Wastewater Reclamation ◽  
Unit Process ◽  
Additional Information ◽  
Recycling Systems ◽  
Water District

Water recycling systems implies the initial treatment requirements for various water reuse schemes including unit process descriptions, performance and cost data. Several volumes of text are required for adequate coverage of the above subject and this paper will only attempt to highlight important areas, provide guidelines and give needed direction. Cost functions of one important U.S. Research/ Demonstration Facility (Water Factory 21) are given in more detail. Much of the data has been summarized from four important publications shown below and the reader seeking additional information is encouraged to examine these in detail.1.Water Reuse and Recycling - Volume 2 - Evaluation of Treactment Technology, 1979, U.S. Office of Water Research & Technology (OWRT). Report by Culp/Wesner/Culp Engineers, NTIS #PB 80-131469.2.Guidelines for Water Reuse, August 1980, U.S. Environmental Protection Agency. Report by Camp Dresser & McKee Engineers, NTIS #PB 81-105017.3.Evaluation of, Membrane. Processes and Their Role in Wastewater Reclamation, 1981. OWRT sponsored report by Orange County Water District, Fountain Valley, California, USA.4.Municipal Wastewater Reuse News. OWRT sponsored monthly newsletter by AWWA Research Foundation, Denver, Colorado, USA.

Estimating Optimal Small Hydropower Portfolios in Data Scarce Southern African Regions

2020 ◽  
Author(s):  
Simbi Hatchard ◽  
Paul Bates ◽  
Francesca Pianosi ◽  
Sam Williamson
Keyword(s):  
Environmental Impact ◽  
Environmental Impacts ◽  
Power Output ◽  
Small Rivers ◽  
Hydraulic Geometry ◽  
Small Hydropower ◽  
Trade Off ◽  
Model Driven ◽  
Trade Offs ◽  
Satellite Rainfall

<p>Small, run of the river hydropower (SHP) has the potential to help provide rural regions in developing countries with access to power. Satellite rainfall products can be used in these often data sparse regions to drive a series of linked models to determine locations feasible SHP sites. However, the inherent uncertainty in satellite rainfall products are a significant source of error, and this must be quantified. Additionally, there is a trade-off between the benefits of power produced from SHP and the cumulative environmental impacts they may produce when multiple are implemented across a basin, and it is important to assess this trade off.  </p><p>The first part of this study calculates the uncertainty in predictions of SHP potential due to satellite rainfall uncertainty across a data sparse catchment. Comparisons of predicted power and its uncertainty are then made at locations where known SHP sites are located, to evaluate the model’s usefulness. The second part of the study involves assessing the trade-off between the cumulative power output and cumulative environmental impact of a range of SHP portfolios, to assess at which locations it is best to construct in order to maximise power output benefits and minimise negative environmental impacts.  </p><p>A calibrated, linked VIC–LISFLOOD hydrodynamic model driven by different satellite derived rainfall datasets was constructed at 5km resolution on the Pungwe Basin in Mozambique / Zimbabwe. The VIC model was calibrated to a single available GRDC gauging station. A LISFLOOD-FP hydraulic model with sub grid channel representation of small rivers was created from the HYDROSHEDs network, river widths extracted from multiple databases, hydraulic geometry relationships for bed depth, and MERIT DEM. Modelled flow from the 5km VIC cells were routed into each 90m LISFLOOD-FP river pixel. Power Duration Curves were then derived for each river pixel across the basin, and the modelled power predictions were evaluated using six known SHP sites in the upper reaches of the basin. Geostatistical techniques were then applied to generate ensembles of satellite rainfall realisations, which were propagated through the model chain, in order to establish the uncertainty in the modelled power. </p><p>Broad assessment of environmental impact has been made based on impacts SHP impacts on river connectivity, with subsequent multi-objective optimisation to analyse the trade-offs between different portfolios based on cumulative power output and impact on river connectivity using the NSGAII algorithm, and thus suggest optimum locations.  </p>

Current status of water reuse systems in Korea

2004 ◽  
Vol 50 (2) ◽  
pp. 309-314 ◽  
Author(s):  
S. Noh ◽  
I. Kwon ◽  
H.-M. Yang ◽  
H.-L. Choi ◽  
H. Kim
Keyword(s):  
Water Reuse ◽  
Water Shortage ◽  
Treated Wastewater ◽  
Current Status ◽  
Water Recycling ◽  
Recycled Water ◽  
Produce Water ◽  
Service Water ◽  
Site Water ◽  
Recycling Systems

In Korea, the current water resources will fall short by 2.6 billion tons to meet the 38 billion ton water demand in the year 2020. To overcome the future water shortage, it is desirable to minimize water consumption and to reuse treated wastewater. There are a total of 99 on-site water-recycling systems in the country. The potential capacity of the 99 systems is 429 thousands tons/day, which is 3.6% of the total service water. Compared to other industrialized countries, the number of the water recycling systems in Korea is extremely small. This is mainly due to the following reasons. First, in Korea, any building with more than 60,000 m2 of total floor space is required to install a water reuse system by law. However, only less than 0.5% of the total buildings have more than 10,000 m2. Therefore, the regulation is ineffective and merely nominal. Second, service water is supplied at low charge (0.20 US-dollar/m3 water). The inexpensive service water often discourages people to recycle treated wastewater. Third, people still think recycled water is not clean enough and can cause diseases. Therefore, they should be informed that a well-maintained recycling system does not fail to produce water with high quality.

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