scholarly journals Enhancement of a Spent Irrigation Water Recycling Process: A Case Study in a Food Business

2021 ◽  
Vol 11 (21) ◽  
pp. 10355
Author(s):  
Guillermo Garcia-Garcia ◽  
Sandeep Jagtap
Keyword(s):  
Irrigation Water ◽  
Membrane Filtration ◽  
Careful Analysis ◽  
Suspended Solid ◽  
Solid Particles ◽  
Water Recycling ◽  
Recycling Process ◽  
Recycling System ◽  
Sprouted Seeds

Food operations use vast amounts of water. To reduce utility costs as well as concerns regarding water depletion in ecosystems, food businesses usually try to reuse their water. However, this often needs a recycling process to ensure the water is of good quality and safe to reuse in a food environment. This paper presents a case study of a grower of beansprouts and other varieties of sprouted seeds that uses six million litres of water weekly. Approximately 60% of their spent irrigation water is recycled using both 50 µm and 20 µm drum filtration. In addition, chlorine dioxide is used as part of the recycling process as a disinfectant. Our analysis demonstrated that the size of suspended solid particles in over 90% of the cumulative sample tested was smaller than the current 20 µm filter in place, highlighting that the existing system was ineffective. We, then, explored options to enhance the water recycling system of the company. After careful analysis, it was proposed to install a membrane-filtration system with ultraviolet technology to increase the finest level of filtration from the existing 20 µm to 0.45 µm absolute and sterilize any remaining bacteria. This not only improved water quality, but also allowed for the removal of chemicals from the recycling system, delivering both financial and technical improvements.

PVDF Emblem⁄Micro Filter Water Recycling System

2008 ◽  
Vol 62 (6) ◽  
pp. 700-703
Author(s):  
Makoto Matsushita ◽  
Yoshiharu Numata
Keyword(s):  
Water Recycling ◽  
Recycling System ◽  
Filter Water

scholarly journals Characteristics of Plastic Waste Processing in the Modern Recycling Plant Operating in Poland

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 35
Author(s):  
Elżbieta Szostak ◽  
Piotr Duda ◽  
Andrzej Duda ◽  
Natalia Górska ◽  
Arkadiusz Fenicki ◽  
...  
Keyword(s):  
Distillation Column ◽  
Solid Particles ◽  
Fuel Quality ◽  
Waste Processing ◽  
The European Union ◽  
Recycling Process ◽  
Heat Demand ◽  
Fuel Components ◽  
The Eu

Although Poland is one of the leading recipients of the waste stream in the European Union (EU), it is at the same time below the average in terms of efficiency of their use/utilization. The adopted technological solutions cause waste processing rates to be relatively low in Poland. As a result, the report of the Early Warning and Response System (EWRS) of the EU indicated Poland as one of the 14 countries of the EU which are at risk in terms of possibility of achieving 50% recycling of waste. This article discusses the implemented technological solutions, and shows the profitability of the investment and the values of the process heat demand both for extractor and reactor. The experimental part analyzed the composition of the input and output of the process and compared it to the required fuel specifications. Attention was drawn to the need to improve the recycling process in order to increase the quality of manufactured fuel components. As potential ways of solving the problem of low fuel quality, cleaning the sorted reaction mass from solid particles and extending the technological line with a distillation column have been proposed. The recommended direction of improvement of the technology is also the optimization of the process of the reactor’s purification and removal of contaminants.

Inovasi Pengolahan Limbah Cair Batik dengan IPAL Ekonomis di Desa Maos Kidul Cilacap

2021 ◽  
Vol 3 (2) ◽  
pp. 36-42
Author(s):  
Theresia Evila Purwanti Sri Rahayu ◽  
Rosita Dwityaningsih ◽  
Murni Handayani ◽  
Khoeruddin Witriansyah ◽  
Ayu Pramita
Keyword(s):  
Wastewater Treatment ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Business Owners ◽  
Solid Particles ◽  
Hazardous Substances ◽  
Pollutant Concentrations ◽  
Service Project ◽  
Hazardous Metal ◽  
Dark Blue

Wastewater resulted from the batik dying process is known for its environmentally hazardous substances including hazardous natural and synthetic organic matter, suspended particles, and hazardous metal. But in the micro and medium scale batik textile business, wastewater treatment is mostly not carried because it does not give benefit for the owner. Economical wastewater treatment constructions can be an alternative for the business owner for their free operational cost. Batik wastewater treatment ought to be carried out to meet government standards but most importantly to decrease hazardous pollutant’s concentrations so it does not harm the environment. This society service project aims to provide alternatively economical wastewater treatment for batik business owners by applying simples and cheapest yet effective treatment methods to reduce pollutant concentrations in wastewater. Methods applied in this project including sedimentation, filtration, and landfill-bioremediation. The laboratorium analysis result shows that sedimentation and filtration are significantly reduced total suspended solid particles in wastewater from 2450 to 100 mg/L in line with wastewater decoloring from dark blue to clear yellow.

scholarly journals Removal Efficiency of Solid Particles from Raw Water Using AFM Grade-2 Media: Case Study

2018 ◽  
Vol 09 (03) ◽  
Author(s):  
Sami M Al Aibi ◽  
Jamal S Al Rukabie ◽  
Adel O Sharif ◽  
Dhia Y Aqar ◽  
Hameed B Mahood ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Solid Particles ◽  
Raw Water

Evaluation of the Temperature Oscillation Technique to Calculate Thermal Conductivity of Water and Systematic Measurement of the Thermal Conductivity of Aluminum Oxide – Water Nanofluid

2004 ◽  
Author(s):  
P. Bhattacharya ◽  
S. Nara ◽  
P. Vijayan ◽  
T. Tang ◽  
W. Lai ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Aluminum Oxide ◽  
Effective Thermal Conductivity ◽  
Base Fluid ◽  
Suspended Solid ◽  
Temperature Oscillation ◽  
Solid Particles ◽  
Systematic Measurement ◽  
Experimental Setup ◽  
Suspended Solid Particles

A nanofluid is a fluid containing suspended solid particles, with sizes of the order of nanometers. The nanofluids are better conductors of heat than the base fluid itself. Therefore it is of interest to measure the effective thermal conductivity of such a nanofluid. We use temperature oscillation technique to measure the thermal conductivity of the nanofluid. However, first we evaluate the temperature oscillation technique as a tool to measure thermal conductivity of water. Then we validate our experimental setup by measuring the thermal conductivity of the aluminum oxide-water nanofluid and comparing our results with previously published work. Finally, we do a systematic series of measurements of the thermal conductivities of aluminum oxide-water nanofluids at various temperatures and explain the reasons behind the dependence of the enhancement in thermal conductivity of the nanofluid on temperature.

Water recycling at the Millennium Dome

2001 ◽  
Vol 43 (10) ◽  
pp. 287-294 ◽  
Author(s):  
S. Hills ◽  
A. Smith ◽  
P. Hardy ◽  
R. Birks
Keyword(s):  
Large Scale ◽  
Pilot Scale ◽  
Water Recycling ◽  
Water Usage ◽  
Customer Perception ◽  
Recycling System ◽  
Optimum Configuration ◽  
Treatment Technologies ◽  
System Information ◽  
System Water

Thames Water is working with the New Millennium Experience Company to provide a water recycling system for the Millennium Dome which will supply 500m3/d of reclaimed water for WC and urinal flushing. The system will treat water from three sources:rainwater - from the Dome roofgreywater - from handbasins in the toilet blocksgroundwater - from beneath the Dome site The treatment technologies will range from “natural” reedbeds for the rainwater, to more sophisticated options, including biological aerated filters and membranes for the greywater and groundwater. Pilot scale trials were used to design the optimum configuration. In addition to the recycling system, water efficient devices will be installed in three of the core toilet blocks as part of a programme of research into the effectiveness of conservation measures. Data on water usage and customer behaviour will be collected via a comprehensive metering system. Information from the Dome project on the economics and efficiency of on-site recycling at large scale and data on water efficient devices, customer perception and behaviour will be of great value to the water industry. For Thames Water, the project provides vital input to the development of future water resource strategies.

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