Perforated pipes placed upon a gravel bed to stop them from becomming clogged. (Giuseppe Bonaty (CESVI))
The technolgy consists of digging of a pit around the spring outlet and placing a 15cm perforated plastic pipe on a bed of gravel. The gravel acts as a natural sediment filter and protects the pipe from clogging. The pipe is buried in more gravel and covered with a plastic sheet to prevent animals from contaminating the spring source. The plastic pipe can be extended and attached to a flexible pipe to deliver clean ground water to the final destination.
Purpose of the Technology: There are two main aims of the technology, the first is to prevent contamination of the spring source from livestock which uses the spring head as a watering hole. The second goal is to optimise the springs capacity for irrigation and human consumption by capturing the water in the perforated pipe and channelling to the usage point.
Establishment / maintenance activities and inputs: The construction of the spring catchment is relatively straight forward. A 1m deep pit is dug around the spring head approximately 2m wide. A bed of washed gravel is placed in the foot of the pit, and a 15cm perforated plastic pipe is embedded into the gravel, this is attached to a flexible tube to transport the clean water away. The perforated pipe is covered in more clean gravel and covered with a heavy polythene sheet and covered in earth. The construction process can be completed in one day if the materials are available.
The only substantial maintenance required would be the cleaning of the pipe and gravel if it gets clogged with earth.
Natural / human environment: In many parts of Tajikistan water for human use and irrigation is scarce and plays a critical role in securing the livelihoods of the local population. The construction of the spring catchment increases not only the volume but also improves the quality of water available. This can and does have a dramatic effect on the productivity of the land and the health of the land users.
ទីតាំង: Khovaling, Khatlon region, ប្រទេសតាហ្ស៊ីគីស្ថាន
ចំនួនទីកន្លែងបច្ចេកទេស ដែលវិភាគ:
ការសាយភាយនៃបច្ចេកទេស: ត្រូវបានផ្សព្វផ្សាយត្រឹមតំបន់មួយ (approx. < 0.1 គម2 (10 ហិកតា))
តើស្ថិតក្នុងតំបន់ការពារអចិន្ត្រៃយ៍?:
កាលបរិច្ឆេទនៃការអនុវត្ត: តិចជាង 10ឆ្នាំមុន (ថ្មី)
ប្រភេទនៃការណែនាំឱ្យអនុវត្តន៍៖
| បញ្ជាក់ពីធាតុចូល | ឯកតា | បរិមាណ | ថ្លៃដើមក្នុងមួយឯកតា (TJS) | ថ្លៃធាតុចូលសរុប (TJS) | % នៃថ្លៃដើមដែលចំណាយដោយអ្នកប្រើប្រាស់ដី |
| កម្លាំងពលកម្ម | |||||
| Digging of the spring head | Persons/day | 2,0 | 25,0 | 50,0 | 100,0 |
| Pipe positioning | Persons/day | 2,0 | 25,0 | 50,0 | 100,0 |
| Gravel positioning | Persons/day | 2,0 | 25,0 | 50,0 | 100,0 |
| Fill back the drainage | Persons/day | 2,0 | 25,0 | 50,0 | 100,0 |
| សម្ភារៈ | |||||
| Tools | Pieces | 4,0 | 10,0 | 40,0 | 100,0 |
| Drill | Pieces | 1,0 | 250,0 | 250,0 | |
| សម្ភារៈសាងសង់ | |||||
| Drainage pipe | meter | 10,0 | 1,5 | 15,0 | |
| Stone | tons | 0,5 | 136,0 | 68,0 | |
| Plastic sheet to cover | sq m | 1,5 | 5,333333 | 8,0 | |
| ថ្លៃដើមសរុបក្នុងការបង្កើតបច្ចេកទេស | 581.0 | ||||
| ថ្លៃដើមសរុបក្នុងការបង្កើតបច្ចេកទេសគិតជាដុល្លារ | 129.11 | ||||
| បញ្ជាក់ពីធាតុចូល | ឯកតា | បរិមាណ | ថ្លៃដើមក្នុងមួយឯកតា (TJS) | ថ្លៃធាតុចូលសរុប (TJS) | % នៃថ្លៃដើមដែលចំណាយដោយអ្នកប្រើប្រាស់ដី |
| កម្លាំងពលកម្ម | |||||
| Cleaning the water channel | Persons/day | 2,0 | 25,0 | 50,0 | 100,0 |
| សម្ភារៈ | |||||
| Tools | Pieces | 2,0 | 10,0 | 20,0 | 100,0 |
| ថ្លៃដើមសរុបសម្រាប់ការថែទាំដំណាំតាមបច្ចេកទេស | 70.0 | ||||
| ថ្លៃដើមសរុបសម្រាប់ការថែទាំដំណាំតាមបច្ចេកទេសគិតជាដុល្លារ | 15.56 | ||||
It has improved access to running water for sanitation, hygiene, irrigation and animal husbandry purposes.
