id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-15323		cet-15323		6	.pdf	application/pdf	3222	72	25	Table 2: Parameters of earthworm habitability conditions Control(days) Temperature (°C) Humidity (%) Hydrogen potential (pH) 0 (initial) 18 57.5 6.5 15 18 80.0 7.0 31 18 77.5 7.0 46 20 70.0 7.0 3.2 Physicochemical and microbiological parameters of treated wastewater in biofilter 1 The wastewater from the management and marketing of hydrobiological products after treatment in biofilter 1, which contained 250 g of Eisenia foetida worms, presented the levels of physicochemical and microbiological parameters shown in Table 3. Parameters No treatment Treatment time (days) 5 10 15 Electrical conductivity (μmho/cm) 8.43 7.44 7.9 3.46 Temperature (°C) 16.5 19.1 21.3 22.5 TSS (mg/L) 345 64.52 17.21 15.18 Color (PCU) 285 125 63.23 47.23 Turbidity (NTU) 146 140.67 104.67 36.07 pH 7.43 7.01 7.15 7.75 BOD5 (mg/L) 744 453 87.22 75.07 COD (mg/L) 1118 580 141.5 124.37 Oils and fats (mg/L) 87 21.05 15.14 11.06 Total Coliforms (NMP/100mL) 240000 1200 1200 1100 Thermotolerant coliforms (NMP/100 mL) 2500 1200 1100 1100 Organic matter (mg/L) 631 87.03 63.22 56.09 3.3 Physicochemical and microbiological parameters of treated wastewater in biofilter 2 Filter 2, with 500 g of worms, showed a level of reduction similar to filter 1, according to the results shown in Table 4, indicating that the efficiency does not depend relatively on the number of worms in the biofilter, the 435 most important thing is the good habitability of the biofilter related to humidity (Loro, 2018), temperature (De Lima Rodríguez et al., 2013) and pH (Paico, 2017).	cache/cet-15323.pdf	txt/cet-15323.txt