Availability and quality of solid waste and wastewater in Southern Thailand and its potential use as fertiliser

Nanette L.. Schouw, Jens Christian Tjell, Hans Mosbæk, S. Danteravanich

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Recycling nutrients to agriculture with waste in Southern Thailand has been assessed in three model-areas: Kuan Lang, Prik and Phattalung. Samples of biodegradable solid waste and gray wastewater were collected and characteris ed physically and chemically. At present nutrients in the biodegradable solid waste and wastewater are lost, but especially kitchen waste and grey household wastewater constitute a large fertiliser potential. The average daily per capita generation rate of household kitchen waste is 228 g wet matter, 0.65 gN, 0.16 gP, 0.34 gK, 0.05 gS, 0.39 gCa, 0.06 gMg, 6.9 mgZn, 0.29 mgCu, 0.05 mgNi, 0.02 mgPb, 0.09 mgCd and 0.006 mgHg. The average daily per capita generation rate of grey household wastewater is 102 L, 2.4 gN, 2.4 gP, 4.2 gK, 2.0 gS, 2.2 gCa, 0.82 gMg, 42 mgZn, 0.91 mgCu, 1.6 mgNi, 0.46 mgPb, 0.20 mgCd and <0.06 mgHg. The waste products generally contain higher amounts of K, Ca, Mg, Zn, Cu and Pb (relative to phosphorous) than conventional chemical fertiliser, while N, S, Ni, Hg and Cd is at the same level.
Original languageEnglish
JournalWaste Management and Research
Volume20
Issue number4
Pages (from-to)332-340
ISSN0734-242X
DOIs
Publication statusPublished - 2002

Keywords

  • wmr 531-3
  • biodegradable solid waste
  • nutrient
  • recycling
  • Thailand
  • kitchen waste
  • waste generation rate
  • agriculture
  • waste characteristics
  • fertiliser
  • trace elements
  • heavy metals
  • grey wastewater

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