Method for promoting ferment acid production of excess sludge through soapnut saponin production leftovers
A technology of sapindus saponin and excess sludge, which is applied in biological sludge treatment, fermentation, chemical instruments and methods, etc., can solve the problems of increasing excess sludge output, increasing operating costs, and being uneconomical, and achieving the realization of The effect of reducing excess sludge, increasing acid production and realizing resource utilization
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[0021] Example 1
[0022] In the embodiment of the present invention, the method for using the leftovers produced by Sapindus saponin to promote acid production by fermentation of excess sludge includes the following steps:
[0023] (1) Sapindus saponin produced by water extraction method 20g of sapindus saponin produced by the enterprise (the content of sapindus saponin is 1‰) is dried with a moisture content of 70%, and a moisture content of 10% is obtained. Material 5.34g;
[0024] (2) Leave the remaining sludge to settle for 36 hours until the concentration of the lower layer of concentrated sludge is 25g / L, remove the supernatant, and take 2000ml of concentrated sludge into a 5L anaerobic fermentation tank; produce according to Sapindus Saponin Leftovers: The mass ratio of dry sludge is 0.1:1. Add 5g of the leftovers from the soappin saponins production to the concentrated remaining sludge;
[0025] (3) Perform anaerobic fermentation on the remaining sludge. The specific steps ar
Example Embodiment
[0027] Example 2
[0028] In the embodiment of the present invention, the method for using the leftovers produced by Sapindus saponin to promote acid production by fermentation of excess sludge includes the following steps:
[0029] (1) Sapindus saponin produced by water extraction method production of sapindus saponin production scraps 375g (the content of sapindus saponin is 1%) moisture content is 80%, and the moisture content is 50% scraps 150g;
[0030] (2) Leave the remaining sludge to settle for 36 hours until the concentration of the lower layer of concentrated sludge is 25g / L, remove the supernatant, and take 2000ml of concentrated sludge into a 5L anaerobic fermentation tank; produce according to Sapindus Saponin Leftovers: The mass ratio of dry sludge is 3:1. Add 150g of the leftovers from the soappin saponins production to the concentrated remaining sludge;
[0031] (3) Perform anaerobic fermentation on the remaining sludge. The specific steps are to first pass carbon diox
Example Embodiment
[0033] Example 3
[0034] In the embodiment of the present invention, the method for using the leftovers produced by Sapindus saponin to promote acid production by fermentation of excess sludge includes the following steps:
[0035] (1) 400g of soapspin saponins produced by the water extraction method for production of sapindus saponin (the content of sapindus saponin is 6‰) is dried with a moisture content of 80%, and a water content of 20% is obtained. ;
[0036] (2) Leave the remaining sludge to settle for 36 hours until the concentration of the lower layer of concentrated sludge is 25g / L, remove the supernatant, and take 2000ml of concentrated sludge into a 5L anaerobic fermentation tank; produce according to Sapindus Saponin Leftovers: The mass ratio of dry sludge is 2:1, and 100g of the leftovers from the soappin saponins production are added to the concentrated remaining sludge;
[0037] (3) Perform anaerobic fermentation on the remaining sludge. The specific steps are to intro
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