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Table 7 Expenses and costs saved in Routes 1 and 2 (USD)

From: Study of the feasibility of a rice husk recycling scheme in Japan to produce silica fertilizer for rice plants

  Items Route 1 Route 2
Expenses Pelletizing ash 61,500 61,500
Boiler operation 81,600 95,100
Costs saved Rice drying 61,875
Greenhouse heating 32,076
Electricity consumption 9438
Fertilizer sale 46,200 46,200
  Profits −2949 (61,875 + 32,076 + 46,200) − (61,500 + 81,600) −100,962 (9438 + 46,200) − (61,500 + 95,100)