2. 3.1. UTILIZATION OF SOLID WASTE IN UPH
Solid waste is a broad term, which encompasses
municipal solid waste, industrial waste, hazardous
waste , bio-medical waste and electronic waste
depending on their source & composition.
It consists of organic and inorganic constituents
which may or may not be biodegradable.
2
3. 3.1. UTILIZATION OF SOLID WASTE IN UPH (CONT…)
Municipal solid waste consists of household solid waste,
construction and demolition debris, sanitation residue,
and waste from streets.
This garbage is generated mainly from residential and
commercial complexes.
Types of solid organic waste generated in urban and
peri-urban agriculture are listed below. 3
4. 3.1. UTILIZATION OF SOLID WASTE IN UPH
Agricultural wastes
Fruit and vegetable market waste
Food processing industry
Kitchen, restaurant and canteen food wastes
Yard wastes from community households and
shops
Park and verge trimmings, swept leaves etc.
4
5. 3.1. UTILIZATION OF SOLID WASTE IN UPH
Solid waste management is defined as the discipline
associated with control of generation, storage,
collection, transport or transfer, processing and
disposal of solid waste materials.
Principles of Solid waste management
Reduce
Recycle
Rebuy
Reuse 5
6. 3.1. UTILIZATION OF SOLID WASTE IN UPH
Reduce: Waste prevention, or "source reduction,"
means consuming and throwing away less.
Source reduction actually prevents the generation of
waste in the first place,
So it is the most preferred method of waste
management.
6
7. 3.1. UTILIZATION OF SOLID WASTE IN UPH
Reuse: Reusing items by repairing them, donating
them to charity and community groups, or selling
them also reduces waste.
Reusing products, when possible, is even better
than recycling because the item does not need to
be reprocessed before it can be used again.
7
8. 3.1. UTILIZATION OF SOLID WASTE IN UPH
Recycle: Recycling transforms materials that
would otherwise become waste into valuable
resources.
Rebuy: In order to make recycling economically
feasible, we must buy recycled products.
8
9. APPROACHES OF WASTE MANAGEMENT
Landfill
Incineration (thermal treatment)
Back yard compost: the natural way of dealing
with organic wastes
Biogas production
Converting organic waste into paper
Waste as animal feed
Vermicomposting
9
10. URBAN WATER MANAGEMENT IN UPH
Whether grown in small gardens or larger fields,
using traditional or high-tech practices,
Horticultural crops have high water
requirements.
The quality of water used in horticulture is also
critical,
Since water-borne pathogens on crops eaten
uncooked can cause diseases such as typhoid and
cholera.
10
11. URBAN WATER MANAGEMENT IN UPH
As cities grow, so does their demand for water,
both for drinking and for use in urban economic
activities, including horticulture.
Over the past 20 years, access to water has
improved and demand increased in many cities.
As a result, water resources have become
increasingly scarce in the urban environment.
11
12. URBAN WATER MANAGEMENT IN UPH
Furthermore, inadequate wastewater management
has led to progressive degradation of the quality of
surrounding water courses and aquifers.
Fierce competition for water poses a major
challenge to urban water management.
12
13. URBAN WATER MANAGEMENT IN UPH
Wise and efficient use of available water resources
can only be achieved through
Integrated water and sanitation planning
strategies.
Water and sanitation institutions, therefore, have
a crucial role to play in ensuring adequate
quantities of safe water for horticultural
production in urban and peri-urban areas.
13
14. URBAN WATER MANAGEMENT IN UPH
The water requirements of urban and peri-urban
horticulture can be met through alternatives such as
Safe use of wastewater (treated waste water)
Harvested rain water
1. Waste water treatment
When appropriately treated for agricultural re-use,
wastewater from domestic sources is safe and can
supply most of the nutrients needed to grow fruit
trees, vegetables and ornamental plants.
14
15. URBAN WATER MANAGEMENT IN UPH
2. Rain water harvesting
Urban horticulture can also make good use of
rain water harvested from roofs.
It is low-cost, less polluted than other sources of
water in urban areas, and
By reducing growers’ dependence on the
municipal water supply – reduces competition for
drinking water.
Rainwater harvesting also helps to mitigate urban
flooding and soil erosion. 15
