A device and method for synergistically strengthening sewage treatment by combining calcium chloride and magnetic field at low temperature
A technology for sewage treatment and magnetic field enhancement, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of effluent water quality decline and excess activated sludge production increase, and achieve utilization Sufficient, guarantee the effect of sewage treatment, improve the effect of biological activity
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Embodiment 1
[0036] combine figure 1 , in the sewage treatment plant, set up the device for synergistically enhanced sewage treatment with calcium chloride and magnetic field in this embodiment at low temperature, the device includes a reactor 4, which is a calcium chloride and magnetic field synergistically enhanced activated sludge reactor , The inside of the reactor 4 is filled with activated sludge. The side wall of the above-mentioned reactor 4 is provided with a drain outlet 5, the bottom of the reactor 4 is provided with a mud discharge outlet 10, and the upper center of the reactor 4 is provided with a water inlet, and one end of the water inlet main pipe 16 extends into the reactor through the water inlet. 4 inside and arranged vertically along the axis of the reactor 4, the other end of the water inlet main pipe 16 is connected with the sewage input pipe 1 and the CaCl 2 Solution input pipe 15 links to each other, through sewage input pipe 1 and CaCl 2 The solution input pipe 1...
Embodiment 2
[0046] The sewage treatment device of this embodiment 2 is the same as that of embodiment 1. When the sewage treatment device is used to treat sewage, its specific operation is basically the same as that of embodiment 1. The ion concentration is 0.01 mM.
[0047] Step 1. Inoculate the reactor 4 with activated sludge at a low temperature of 10°C. The sludge concentration is 3500mg / L, and the organic load of the water entering the reactor 4 through the sewage input pipe 1 is 0.2kg / (m 3 The simulated domestic sewage in d) is aerated and stirred through the aeration device 8 and the stirring device 9 respectively, so that the activated sludge reaches a state of complete mixing;
[0048] Step 2: Turn on the power supply 14 after the activated sludge has been domesticated for 18 days, form a magnetic field in the reactor 4 through a magnetic field strengthening device, and pass CaCl 2 Solution input pipe 15 adds CaCl in reactor 4 2 Solution, build the activated sludge reactor that...
Embodiment 3
[0064] The sewage treatment device of the present embodiment 3 is the same as that of the embodiment 1. When the sewage treatment device is used to treat the sewage, its specific operation is basically the same as that of the embodiment 1. The ion concentration is 0.05 mM.
[0065] Step 1. Inoculate the reactor 4 with activated sludge at a low temperature of 8°C. The sludge concentration is 4500 mg / L, and the organic load of the water entering the reactor 4 through the sewage input pipe 1 is 0.2 kg / (m 3 The simulated domestic sewage in d) is aerated and stirred through the aeration device 8 and the stirring device 9 respectively, so that the activated sludge reaches a state of complete mixing;
[0066] Step 2: Turn on the power supply 14 after the activated sludge has been domesticated for 22 days, form a magnetic field in the reactor 4 through a magnetic field strengthening device, and pass CaCl 2 Solution input pipe 15 adds CaCl in reactor 4 2 Solution, build the activated...
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Abstract
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