Department of Environment and Natural Resources

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    Date: 2022-09-09 12:47:45.820542


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    Date: 2022-09-12 15:02:50.567854

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Sewage Sludge Disposal

Requested from DENR by R. Enriquez at 12:47 PM on Sep 09, 2022.
Purpose: Research and Development
Date of Coverage: 01/01/2017 - 09/09/2022
Tracking no: #DENR-874390906165

Enriquez 12:47 PM, Sep 09, 2022

Good Day! I am humbly asking for your assistance to provide the following data for the research study entitled "Design and Development of Phosphorus Recovery and Purifying Machine for Phosphorus Fertilizer Production from Sewage Sludge" :

1. Sewage Sludge Disposal in the Philippines

2. Current situation of Sewage Sludge in the Philippines.

3. Amount of Sewage Sludge generated from year 2017- 2022. 

Thank you very much and God bless!

DE LAYOLA 03:02 PM, Sep 12, 2022

Sep 12, 2022

Dear Rhea Lee Enriquez,

Thank you for your request dated Sep 09, 2022 12:47:45 PM under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch, for Sewage Sludge Disposal.

We received your request on Sep 09, 2022 12:47:45 PM and we have forwarded your request to another agency.

Should you have any questions regarding your request, kindly contact using the reply function on the eFOI portal at, for request with ticket number #DENR-874390906165.

As part of our evaluation of our services, we would like you to completely and honestly answer our client request  feedback at

Thank you.

JOCELYN B. DE LAYOLA                                                                                                                                          FOI Officer/OIC-Chief
Records Management Division
DENR Central Office
Tel. No. (02) 8926-8079
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