Philippine Textile Research Institute

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    Date: 2023-04-03 15:31:18.099239

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    Date: 2023-04-17 16:24:54.634451

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Water Hyacinth Fiber as Erosion Control Mat

Requested from PTRI by R. Delfin at 03:31 PM on Apr 03, 2023.
Purpose: Geotechnical Engineering Research and Development
Date of Coverage: 04/03/2000 - 04/03/2023
Tracking no: #PTRI-890301757265

Delfin 03:31 PM, Apr 03, 2023 

Hi! I would like to request the following information:

1) Water Hyacinth Fiber Properties
2) Local Availability of Water Hyacinth Fiber Extraction and Drying
3) List of Companies that Locally Manufactures Geotextile using Natural Fibers and Synthetic Fiber
4) List of Companies that Locally Manufactures Erosion Control Mat/Net

Dumaya Jr. 04:24 PM, Apr 17, 2023 

April 17, 2023

Dear Ricardo Delfin,

Greetings!

Thank you for your request dated Apr 03, 2023 03:31:18 PM under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch.

Your Request

You asked for Water Hyacinth Fiber as Erosion Control Mat.

Response to Request

Your FOI request is approved. I enclose a copy of the information you requested.

1) Based on our study here are the water hyacinth fiber properties:

Residual gum - 58.85%
Tensile strength - 1.16 N
Fiber fineness - 68.05 Denier
Your right to request a review

2) DOST-PTRI accepts fiber extraction services. However, there are also other groups doing this. In particular, the Villar Sipag group in Las Pinas that makes use of water hyacinth for handicrafts.

3 and 4) DOST-PTRI caters to processing services related to geotextile, geonet production using weaving process. Villar group also produces geotextiles from natural materials.

If you are unhappy with this response to your FOI request, you may ask us to carry out an internal review of the response by writing to Julius L. Leaño, Jr., Ph.D., at ptri.records@ptri.dost.gov.ph. Your review request should explain why you are dissatisfied with this response, and should be made within 15 calendar days from the date when you received this letter. We will complete the review and tell you the result within 30 calendar days from the date when we receive your review request.

If you are not satisfied with the result of the review, you then have the right to appeal to the Office of the President under Administrative Order No. 22 (s. 2011).

Kindly accomplish the attached DOST-PTRI: FOI Request Feedback Form using the link provided below.

https://docs.google.com/forms/d/1uNem_R55Qip7QKGBj_gNQNwUAUSAi8FdMxvKbYsJEts/edit

Thank you.

Respectfully,

Herson D. Dumaya Jr.
FOI Receiving Officer

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