• Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Get free circuit help 24/7

Circuits for Beginners | Basic Circuits | LED Driver | Hobby Circuits | Transistor Circuits

New-Projects | Privacy Policy | About us | Contact | Disclaimer | Copyright

Home » Solar Controllers » Greywater Purifier Desalination System

Greywater Purifier Desalination System

Last Updated on February 4, 2019 by Swagatam 1 Comment

The post explains a simple grey water purifier, desalination design arrangement which can be used for recycling greywater into pure usable distilled water completely free of cost through solar heat concentration. The idea was requested by Mr. Luis Gomes Machado

Circuit Objectives and Requirements

  1. I wrote to you on a forum last week about your idea for a desalinator. I would want to explain you my need and try to understand if we can make your idea doable.
  2. I have an average need of 25 m3 (25 000 L) of water per month.
  3. I am implementing a grey water re-usage from showers, washing machine and sinks, to toilets filtering this grey water through 2 sand filters.Recen studies in Colombia state that 40% of water usage is on toilets which I would save this way 10 m3 (10 000 L)I will then have a need or the remaining 15,000 L per month.
  4. I have 8 Air Conditioning mini splits that produce 40 L per day each one. so...8 x 40 L x 30 days = 9 600 L per month I will need to find an extra way of obtaining 5 400 L per month of water.
  5. Lets round up and say 200 L per day. do you think that your system is able to produce 200 L of desalinated water per month? How? What do you suggest?
  6. I live in the Colombian Caribbean with an average temperature of 30ºC and almost no rain per year thanx in advance for your advice

The Design

Whether its Greywater or sewage, any form of impure water can be easily converted into a pure distilled water using solar heat which is amply available on this planet, especially within the tropical areas where sun heat is abundantly accessible.

I have already discussed a similar concept for desalinating sea water in large quantities and also how to make drinking water from sea water, the present greywater purifier, desalination design is implemented using the same theory of evaporating/cooling waste water through concentrated sun rays.

The following simple arrangement using a concave polished metal and the associated mechanisms can be used for concentrating sun rays at the calculated focal points.

Solar Greywater Desalination Set up

As can be seen in the above diagram, sun rays incident on the polished concave mirror or sheet is reflected back at an inward 45 degrees to concentrate over the centrally elevated pipe, running throughout the length of the sheet.

The concentrated sun rays over this pipe can be expected to be extremely high in temperature, in the region of around 150 C, enough to force water to evaporate.

Since the intended greywater is passed into the pipe, as indicated, this water inside the pipe is bound to reach its boiling and evaporation point quite quickly releasing water vapor from the other side of the pipe, which may be collected and condensed in an overhead tank.

This collected water can be expected to be 100% clean and could be used for any desired household work, such as for washing clothes, bathing, washing utensils etc.

Many such concave mirror based greywater purifier, desalination system could be installed within a given premise for implementing the above discussed conversion of waste water to clean water through solar heat, completely free of cost, and without using any electricity.

You'll also like:

  • 1.  Types of Solar Panels, Solar Inverters Explained
  • 2.  Solar E Rickshaw Circuit
  • 3.  Simple Solar Garden Light Circuit – With Automatic Cut Off
  • 4.  Potato Battery Circuit – Electricity from Vegetables and Fruits
  • 5.  Solar Drip Irrigation Circuit for Indoor Gardens
  • 6.  How to Make Dye-Sensitized Solar Cell or Solar Cell from Fruit Tea

About Swagatam

I am an electronic engineer (dipIETE ), hobbyist, inventor, schematic/PCB designer, manufacturer. I am also the founder of the website: https://www.homemade-circuits.com/, where I love sharing my innovative circuit ideas and tutorials.
If you have any circuit related query, you may interact through comments, I'll be most happy to help!

Subscribe for the Latest Posts


 

Reader Interactions

Comments

    Your Comments are too Valuable! But please see that they are related to the above article, and are not off-topic! Cancel reply

    Your email address will not be published. Required fields are marked *

  1. Sundeep Pattar says

    Sir,
    I have a 6V 4.5Ah Lead Acid Battery. Please help me how to build a circuit to charge it …? Are there any circuits available in the market so tat I can directly buy?

    Reply

Primary Sidebar



Categories

  • 3-Phase Power (15)
  • 324 IC Circuits (19)
  • 4017 IC Circuits (53)
  • 4060 IC Circuits (25)
  • 555 IC Circuits (98)
  • 741 IC Circuits (19)
  • Amplifiers (58)
  • Arduino Engineering Projects (82)
  • Audio Projects (95)
  • Battery Chargers (82)
  • Car and Motorcycle (94)
  • Datasheets (46)
  • Decorative Lighting (Diwali, Christmas) (33)
  • DIY LED Projects (89)
  • Electronic Components (97)
  • Electronic Devices and Circuit Theory (35)
  • Electronics Tutorial (109)
  • Fish Aquarium (5)
  • Free Energy (35)
  • Fun Projects (11)
  • GSM Projects (9)
  • Health Related (18)
  • Heater Controllers (28)
  • Home Electrical Circuits (101)
  • How to Articles (20)
  • Incubator Related (6)
  • Industrial Electronics (28)
  • Infrared (IR) (40)
  • Inverter Circuits (98)
  • Laser Projects (12)
  • LM317/LM338 (21)
  • LM3915 IC (25)
  • Meters and Testers (63)
  • Mini Projects (171)
  • Motor Controller (66)
  • MPPT (7)
  • Oscillator Circuits (24)
  • PIR (Passive Infrared) (8)
  • Power Electronics (33)
  • Power Supply Circuits (74)
  • Radio Circuits (9)
  • Remote Control (47)
  • Security and Alarm (61)
  • Sensors and Detectors (116)
  • SG3525 IC (5)
  • Simple Circuits (74)
  • SMPS (29)
  • Solar Controllers (61)
  • Timer and Delay Relay (54)
  • TL494 IC (5)
  • Transformerless Power Supply (8)
  • Transmitter Circuits (40)
  • Ultrasonic Projects (14)
  • Water Level Controller (45)

Circuit Calculators

  • AWG to Millimeter Converter
  • Battery Back up Time Calculator
  • Capacitance Reactance Calculator
  • IC 555 Astable Calculator
  • IC 555 Monostable Calculator
  • Inductance Calculator
  • LC Resonance Calculator
  • LM317, LM338, LM396 Calculator
  • Ohm’s Law Calculator
  • Phase Angle Phase Shift Calculator
  • Power Factor (PF) Calculator
  • Reactance Calculator
  • Small Signal Transistor(BJT) and Diode Quick Datasheet
  • Transistor Astable Calculator
  • Transistor base Resistor Calculator
  • Voltage Divider Calculator
  • Wire Current Calculator
  • Zener Diode Calculator

Facebook
Twitter
YouTube
Instagram
My Facebook-Page
Quora

© 2022 · Swagatam Innovations

We use cookies on our website to give you the best experience.
Cookie settingsAccept All
Privacy & Cookies Policy

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Please visit the Privacy Policy Page for more info.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Non-necessary
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
SAVE & ACCEPT