water purification system

1. DESIGN AND DEVELOPMENT OF DOMESTIC
WASTEWATER HEAT RECOVERY AND
PURIFICATION SYSTEM

3. 1.HEAT EXCHANGER

4.  A heat exchanger is a device which allows for fast and efficient transfer of heat
from one medium to another. It is used to heat or cool a particular medium
using another in the vicinity. The process works based upon the basic science of
flow of heat; from hot to cool medium. While anybody can decrease or increase
the temperature of a medium; using physical contact or intermixing with
another medium. A heat exchanger allows for the transfer of heat without
actual contact in between.
 It basically consists of segregated elements with high thermal conductivity to
act as an element for heat transfer. They keep the two fluids separated from
each other; while allowing efficient transfer of heat. Irrespective of the and
shape of the exchanger; the actual heat transfer happen in response to the
relative flow of liquid in these segregated elements. A heat exchanger can have
concurrent, counter or cross flow arrangement; for effective heat exchange
between the medium.

8. 2.Hot water reserver
Here hot water reserve sothat we collect total loss
heat recover

9. 3.Waste water tank
 Here we collect total wastewater from home

10. 4.Wetland filtration system

11. As sediment, excess nutrients and chemicals flow off of the land, wetlands filter the run
off before it reaches open water. Nutrients are stored and absorbed by plants or
microorganisms. Sediment settles at the bottom after reaching an area with slow water
flow. Additionally, carbon and greenhouse gases are stored in sinks in wetlands instead of
being released into the atmosphere. This natural purification definition is an example of
the value of wetlands in our environments.

12. 5.Sand filtration
Sand filters are used as a step in the water treatment process
of water purification.
There are three main types; rapid (gravity) sand filters, upward flow
sand filters and slow sand filters. All three methods are used
extensively in the water industry throughout the world. The first two
require the use of flocculant chemicals to work effectively while
slow sand filters can produce very high quality water
with pathogens removal from 90% to >99% (depending on the
strains), taste and odour without the need for chemical aids.[1] Sand
filters can, apart from being used in water treatment plants, be used
for water purification in singular households as they use materials
which are available for most people

13. 6.Carbon filtration

14. A water purifier comes with different set of filters with each playing a crucial role in purification
process. Carbon filter is one of them which not just removes impurities but also act as a taste enhancer!
Carbon filters play a crucial role in the process of water purification as they remove all the unwanted
chemicals and organic compounds like chlorine, pesticides, and other Volatile Organic Compounds
(VOCs) that may be present in the water.
They are also effective in removing the smell and odor from water, while improving the taste of water.
As water passes through a carbon filter, the activated carbon particles absorb all these impurities along
with the bad taste and organic compounds.

15. 7.Stone filtration
A stone water filter is an excellent avenue for the acquirement of hygienic water.
Water purification systems are widely known for their ability to lower the risk of
dangerous diseases such as gastrointestinal disease by 80%.

16. 8. Flocculation
Flocculation is a water treatment process where solids form larger clusters, or flocs, to be
removed from water. This process can happen spontaneously, or with the help of chemical
agents. It is a common method of stormwater treatment, wastewater treatment, and in the
purification of drinking water.

17. 9. Coagulation
Coagulation-flocculation is a chemical water treatment technique typically
applied prior to sedimentation and filtration (e.g. rapid sand filtration) to
enhance the ability of a treatment process to remove particles. Coagulation is a
process used to neutralise charges and form a gelatinous mass to trap (or bridge)
particles thus forming a mass large enough to settle or be trapped in the
filter. Flocculation is gentle stirring or agitation to encourage the particles thus
formed to agglomerate into masses large enough to settle or be filtered from
solution

18. 10.Add water Ingredients
Natural mineral water usually contains the following substances in varying
degrees:
Sodium, potassium, calcium, magnesium, chloride, sulfate, hydrogen carbonate.

19. 12.Uv treatment
Ultraviolet water purification is the most effective method for disinfecting bacteria from
the water. Ultraviolet (UV) rays penetrate harmful pathogens in your home’s water and
destroy illness-causing microorganisms by attacking their genetic core (DNA). This is
extremely efficient in eliminating their ability to reproduce. Disinfecting your water with
Ultraviolet light is exceptionally simple, effective and environmentally safe

20. 12.Water tank
here pure water is reserve to supply the main reserve tank

21. 13.High pressure pump
The pump moves water in a cylinder through a piston or plunger. It is the pump that produces a
force so that the water creates a flow. Unlike a motor engine which uses the movement of the
piston to turn the crankshaft, the pump relies on the crankshaft movement to drive the pistons.
This movement allows the water to flow in and out of the pump.