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Table 1

Characteristics of different types of grey-water in China and in other countries

 Bathroom
Laundry
Kitchen
Mixed
ChinaaOther countries eChinabOther countries eChinacOther countries eChinadOther countries e
pH 6.8–7.7 6.4–8.1 7.0–10.5 7.5–10 4.6–8.3 6.3–8.2 5.7–7.6 5.0–8.7 
COD cr/mg/L 73–463 95–645 276–1,342 12.8–1,815 183–1,776 3.8–2,560 202–1,014 13–700 
BOD5/mg/L 15–69 33–424 94–512 48–470 88–858 390–1,460 88–535 41–194 
TOC/mg/L 5.3–99 30–120 26.8–991 100–280 32.6–300.6 234–880 11.2–141.6 60–92 
TN/mg/L 4.9–12.3 5–17 3.7–48.6 6–21 7.4–196.9 0.31–74 5.7–25.0 0.54–18.1 
NH4-N/mg/L 2.3–6.1 <0.1–15 3.5–29 <0.1–11.3 0.7–62.1 0.002–23 1.8–5.6 <0.05–25.4 
TP/mg/L 0.2–0.7 0.11–2 0.14–1.7 0.062–57 1.0–10.1 0.06–74 0.5–4.6 0.16–27.3 
LAS/mg/L 6.0–15.2  0.7–15  0.3–16.9  1.1–40.5  
TSS/mg/L 570–779 54–205 193–826 65–280 325–2,258 15–720 335–2,656  
SS/mg/L 32–359 40–120 79.2–543.5 2.7–250 29–2,130 3.1–185 53–400  
Total bacteria/CFU/L 2.0 × 107–2.5 × 109    1.1 × 109–9.5 × 109  1.4 × 108–7.9 × 109  
Total coliform/CFU/L 4.3 × 104–3.5 × 107 5–2.4 × 107  56–8.9 × 105 1.7 × 107–2.4 × 108  4.9 × 107–9.4 × 108 107.2 × 108.8 
 Bathroom
Laundry
Kitchen
Mixed
ChinaaOther countries eChinabOther countries eChinacOther countries eChinadOther countries e
pH 6.8–7.7 6.4–8.1 7.0–10.5 7.5–10 4.6–8.3 6.3–8.2 5.7–7.6 5.0–8.7 
COD cr/mg/L 73–463 95–645 276–1,342 12.8–1,815 183–1,776 3.8–2,560 202–1,014 13–700 
BOD5/mg/L 15–69 33–424 94–512 48–470 88–858 390–1,460 88–535 41–194 
TOC/mg/L 5.3–99 30–120 26.8–991 100–280 32.6–300.6 234–880 11.2–141.6 60–92 
TN/mg/L 4.9–12.3 5–17 3.7–48.6 6–21 7.4–196.9 0.31–74 5.7–25.0 0.54–18.1 
NH4-N/mg/L 2.3–6.1 <0.1–15 3.5–29 <0.1–11.3 0.7–62.1 0.002–23 1.8–5.6 <0.05–25.4 
TP/mg/L 0.2–0.7 0.11–2 0.14–1.7 0.062–57 1.0–10.1 0.06–74 0.5–4.6 0.16–27.3 
LAS/mg/L 6.0–15.2  0.7–15  0.3–16.9  1.1–40.5  
TSS/mg/L 570–779 54–205 193–826 65–280 325–2,258 15–720 335–2,656  
SS/mg/L 32–359 40–120 79.2–543.5 2.7–250 29–2,130 3.1–185 53–400  
Total bacteria/CFU/L 2.0 × 107–2.5 × 109    1.1 × 109–9.5 × 109  1.4 × 108–7.9 × 109  
Total coliform/CFU/L 4.3 × 104–3.5 × 107 5–2.4 × 107  56–8.9 × 105 1.7 × 107–2.4 × 108  4.9 × 107–9.4 × 108 107.2 × 108.8 

aJiang & Gao (2003), Chen et al. (2010).

bGu (2004), Xiao & Zhang (2009), Nie et al. (2013).

cChen et al. (2010), Ge & Ge (2010), Zhan (2015).

dTang et al. (2009), Chen et al. (2010).

eEriksson et al. (2002); Friedler (2004), Lu (2011).

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