2010年-世界发展银行全球_Industrial_Wastewater_Management_in_River_Basins_Nhue-day_and_Dongnai_Project___Survey_Data_-_Inventories_of_Craft_Village_11页_187kb

4. INVENTORIES OF CRAFT VILLAGES

Overview

This document provides an inventory of craft villages in the province of HaNoi-HaTay, detailing their location, year of operation, number of households and workers, products, and environmental impact data, particularly concerning wastewater. It highlights the types of crafts, the scale of operations, and the lack of wastewater treatment facilities in most of these villages.

Core Content

Craft Villages in HaNoi-HaTay

The document lists a total of 33 craft villages across various districts in HaNoi-HaTay, with the following main categories of crafts:

• Bamboo thread weaving
• Hat weaving
• Wood processing
• Food processing (wine, cassava, noodles, etc.)
• Textile and embroidery
• Mechanic and metal processing
• Furniture
• Leather and shoe making
• Cotton processing for quilted blankets
• Construction services
• Traditional photography
• Fine art painting and sculpture
• Weaving (dry grass, hammock, finishing net)
• Industrial services

Environmental Impact

Most of the listed craft villages do not have existing wastewater treatment facilities. The data includes the following key environmental indicators:

• Total Wastewater Flow: Ranges from 186 m³/day to 9434 m³/day.
• COD (Chemical Oxygen Demand): Data is missing for most entries, but where available, it ranges from 0 mg/l to 1250 kg/d.
• DBO5 (5-day Biochemical Oxygen Demand): Data is missing for most entries.
• SS (Suspended Solids): Data is missing for most entries.
• Coliforms: Data is missing for most entries, but some entries indicate highly polluted organic wastewater.

Key Information Summary

District-wise Distribution

Major Polluting Crafts

• Bamboo thread weaving: Appears in 15 villages, with high volumes of wastewater.
• Food processing: Present in 6 villages, including wine, cassava, and noodle production.
• Hat weaving: Found in 4 villages.
• Wood processing: Present in 3 villages.
• Embroidery: Found in 5 villages.
• Leather and shoe making: Present in 3 villages.
• Furniture: Found in 5 villages.
• Mechanic and metal processing: Present in 2 villages.
• Cotton processing for quilted blankets: Found in 2 villages.
• Traditional photography: Present in 1 village.
• Fine art painting and sculpture: Found in 1 village.

Wastewater Characteristics

• Most villages do not have treatment systems.
• High volumes of wastewater are associated with large-scale operations, such as Phú Yén (300 households, 600 workers) and Van Phú c (660 households, 2780 workers).
• COD and DBO5 levels are not specified in most cases, but some entries indicate high organic contamination.

Main Points

• The craft villages are spread across several districts in HaNoi-HaTay.
• Bamboo thread weaving and food processing are the most prevalent crafts.
• Wastewater treatment is lacking in all listed villages.
• The scale of operations varies significantly, with some villages having large numbers of households and workers.
• Environmental pollution is a concern due to the lack of wastewater management systems.
• Relocation plans are mentioned for some villages, indicating potential future changes in their locations.

Conclusion

The inventory highlights the extensive presence of traditional and industrial crafts in HaNoi-HaTay, but also raises significant environmental concerns due to the lack of wastewater treatment facilities. The data suggests that many of these villages are sources of pollution, particularly those involved in organic waste production and textile processing. There is a need for environmental management and pollution control measures to be implemented to mitigate the impact on local ecosystems.