Method for treating dredging bottom sludge with nereis
A technology of bottom mud and clamworm, applied in the direction of sludge treatment, sludge treatment, biological sludge treatment, etc., can solve the problems of waste of resources, funds, investment, etc., to avoid complications, improve the breeding environment, and the treatment method is simple and efficient. economic effect
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Embodiment 1
[0030] Methods of dealing with dredged sediment:
[0031] 1) Adopt the method of aerobic composting to the dredged bottom mud of the river course lake to be treated, make the water content of the bottom mud reach 65%, after adjusting, load into the clam worm reactor ( figure 1 ) for 30 days of composting treatment, using natural ventilation and artificial turning for oxygen supply, and the turning frequency is once every 6 days. use.
[0032] 2) Mix the bottom mud and sea sand obtained in the above step 1) with a mass ratio of 1:0.43, add the annual clamworm after mixing, the body length is 10-15cm, and in the artificial seawater with a salinity of 32‰, 13 ℃, pH value is 7.5, using natural ventilation and artificial turning over to supply oxygen, using clamworms to treat the sediment for 40 days; the density of clamworm input is 250 / m 2 (The average wet weight is 2.30±0.23g / bar). The clamworm is Perinereis aibuhitensis.
[0033] The construction of the clam worm bioreactor...
Embodiment 2
[0041] Desalination method of bottom mud after clamworm treatment
[0042] 1) Adopt the method of aerobic composting to the dredged bottom mud of the river course lake to be treated, make the water content of the bottom mud reach 65%, after adjusting, load into the clam worm reactor ( figure 1 ) for 30 days of composting treatment, using natural ventilation and artificial turning for oxygen supply, and the turning frequency is once every 6 days. use.
[0043] 2) Mix the bottom mud and sea sand obtained in the above step 1) with a mass ratio of 1:0.43, add the annual clamworm after mixing, the body length is 10-15cm, and in the artificial seawater with a salinity of 32‰, 13 ℃, pH value is 7.5, using natural ventilation and artificial turning over to supply oxygen, using clamworms to treat the sediment for 40 days; the density of clamworm input is 250 / m 2 (The average wet weight is 2.30±0.23g / bar). The clamworm is Perinereis aibuhitensis.
[0044] 3) The bottom sludge treated ...
Embodiment 3
[0049] Production of turf substrate by desalination of sediment after clamworm treatment ( Figure 4 ):
[0050] 1) Adopt the method of aerobic composting to the dredged bottom mud of the river course lake to be treated, make the water content of the bottom mud reach 65%, after adjusting, load into the clam worm reactor ( figure 1 ) for 30 days of composting treatment, using natural ventilation and artificial turning for oxygen supply, and the turning frequency is once every 6 days. use.
[0051] 2) Mix the bottom mud and sea sand obtained in the above step 1) with a mass ratio of 1:0.43, add the annual clamworm after mixing, the body length is 10-15cm, and in the artificial seawater with a salinity of 32‰, 13 ℃, pH value is 7.5, using natural ventilation and artificial turning over to supply oxygen, using clamworms to treat the sediment for 40 days; the density of clamworm input is 250 / m 2 (The average wet weight is 2.30±0.23g / bar). The clamworm is Perinereis aibuhitensis...
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