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Table 4 Comparison of the mineral comparison of these organic wastes studied

From: Evaluation of physicochemical, microbiological, and energetic characteristics of four agricultural wastes for use in the production of green energy in Moroccan farms

Mineral element Cow dung (mg/kg) Broiler droppings (mg/kg) Horse manure (mg/kg) Excrement of laboratory mouse (mg/kg) Inhibitory content of anaerobic digestion (mg/l)
Ca 59.73–63.31 29.82–30.4 21.79–22.61 20.42–20.73 8000a
Fe 2.94–3.31 0.057–0.99 6.36–6.37 0.56–0.61 5650a
K 11.81–12.28 32.85–34.96 13.72–13.84 12.75–13.54 400b
Na 3.80–3.98 3.20–3.25 2.12–2.16 2.69–2.78 200b
Co 0.251–0.256 0.072–0.072 1.435–1.561 100b
Cr 4.178–4.353 7.967–8.296 23.259–32.370 6.44–8.48 300b
Cu 24.559–24.612 69.453–70.909 16.354–17.444 25.24–26.48 250b
Mo 4.008–4.018 5.768–7.533 3.021–5.022 2.43–2.43
Ni 6.613–29.931 9.166–14.993 17.237–73.856 6.64–7.08 300b
Pb 1.364–2.009 2.318–2.370 5.293–5.588 0.51–0.64 340b
Se 0.335–0.335 0.632–1.231 0.227–0.271 0.07–0.53 1.8a
W 3.114–3.114 2.57- 2.57
Zn 62.451–62.677 191.767–196.358 61.210–67.588 122.90–127.14 400b
  1. a [80], b [65]