**Static Experiment:**
**Equipment Required:** A 1-liter beaker, an aeration device, micro-electrolytic filler, acid, alkali, and coagulant.
Place 1 kg of the packing material into the beaker and position an aeration head at the bottom to create an aeration system. Then, add the wastewater to be tested without filling the beaker completely. Turn on the aeration system and adjust the air flow to match the desired process conditions.
**Time Adjustment:** The experiment can be conducted in different time intervals such as 30, 45, 60, or 90 minutes, depending on the required reaction time.
**pH Adjustment:** Adjust the pH of the wastewater to values like 2, 3, 4, 5, and 6, and measure the pH of the effluent after each test.
After the reaction is complete, pour out the wastewater and adjust the pH to between 8 and 9 using lime or liquid alkali. You may also add a small amount of coagulant, such as PAC, to facilitate flocculation and precipitation. Finally, collect the supernatant for further analysis.
**Dynamic Experiment:**
The dynamic test simulates real-world conditions by placing the reactor on-site for continuous operation. The reactor design should be tailored according to the specific wastewater type and site requirements. Using the density of the filler (1 ton per cubic meter) and its microporosity (65%), we can estimate the treatment capacity. For example, if the micro-electrolysis process takes 60 minutes, one cubic meter of filler can treat 0.6 cubic meters of water per hour. If the test duration is 30 minutes, then the treatment rate would be 60/30 × 0.6 = 1.2 cubic meters per hour. This calculation can be applied similarly for other time intervals.
**Iron Carbon Filler Experiment – Summary of Wastewater Treatment Technologies**
**Miss Li – 186-6364-0492**
1. **Printing and Dyeing Wastewater:** The micro-current and magnetic field effects between iron and carbon can break down chromophores, effectively decolorizing the wastewater.
2. **Electroplating and PCB Wastewater, Heavy Metal Complex Wastewater:** New ecological iron ions produced at the anode reduce heavy metal complexes. Combined with electrophoretic effects and iron hydroxide co-precipitation, this helps remove heavy metals and COD from the wastewater.
3. **Nitrobenzene, Aniline, Coking, Petrochemical, Hydrogen Peroxide, Rubber Auxiliary, and Benzene Ring Wastewater:** A 1.2V potential difference between iron and carbon generates a magnetic field that causes electron movement, breaking down carbon chains and rings. This reduces COD significantly and improves biodegradability, converting refractory substances into more degradable forms.
4. **Pharmaceutical Wastewater:** The micro-current effect converts stable compounds into more decomposable ones, reducing COD and disinfecting pathogens in hospital wastewater.
5. **Papermaking Wastewater:** Micro-electrolysis, magnetic fields, and redox reactions break down long-chain polysaccharides into simpler sugars, improving biodegradability and making it easier to remove through Fenton oxidation.
6. **Livestock Wastewater and High-Concentration Organic Wastewater:** Micro-electrolysis breaks down organic chains and destroys chromophore groups, reducing COD, ammonia nitrogen, and phosphorus levels.
**Iron Carbon Filler Experiment – Detailed Data on Various Wastewaters**
1. **Pig Farm Wastewater:** Initial COD: 12,163.05 mg/L; Ammonia Nitrogen: 1,080.16 mg/L. After small-scale denitrification tower, COD dropped to 1,790.43 mg/L, and ammonia nitrogen to 13.28 mg/L. After micro-electrolysis, COD was 384.27 mg/L.
2. **Electroplating Wastewater:** Raw Water COD: 945 mg/L; After Micro-Electrolysis: 135 mg/L.
3. **Nitrobenzene Wastewater:** Raw Water COD: 3,800 mg/L; Nitrobenzene: 82.5 mg/L. After Iron-Carbon Micro-Electrolysis + Fenton: COD: 107 mg/L; Nitrobenzene: 0.26 mg/L.
4. **Aniline Wastewater:** Raw Water COD: 5,035 mg/L; After Two-Stage Micro-Electrolysis + Fenton: COD: 113 mg/L.
5. **Modified Starch Wastewater:** Raw Water COD: 12,000 mg/L; After Two-Stage Micro-Electrolysis: 5,875 mg/L.
6. **Cattle Wastewater:** Raw Water COD: 11,034 mg/L; After Two-Stage Micro-Electrolysis: 1,416 mg/L; After Two-Stage Micro-Electrolysis + Fenton: 857 mg/L.
7. **Chemical Wastewater:** Raw Water COD: 20,000 mg/L; After Two-Stage Micro-Electrolysis + Fenton: 1,600 mg/L.

**Equipment Required:** A 1-liter beaker, an aeration device, micro-electrolytic filler, acid, alkali, and coagulant.
Place 1 kg of the packing material into the beaker and position an aeration head at the bottom to create an aeration system. Then, add the wastewater to be tested without filling the beaker completely. Turn on the aeration system and adjust the air flow to match the desired process conditions.
**Time Adjustment:** The experiment can be conducted in different time intervals such as 30, 45, 60, or 90 minutes, depending on the required reaction time.
**pH Adjustment:** Adjust the pH of the wastewater to values like 2, 3, 4, 5, and 6, and measure the pH of the effluent after each test.
After the reaction is complete, pour out the wastewater and adjust the pH to between 8 and 9 using lime or liquid alkali. You may also add a small amount of coagulant, such as PAC, to facilitate flocculation and precipitation. Finally, collect the supernatant for further analysis.
**Dynamic Experiment:**
The dynamic test simulates real-world conditions by placing the reactor on-site for continuous operation. The reactor design should be tailored according to the specific wastewater type and site requirements. Using the density of the filler (1 ton per cubic meter) and its microporosity (65%), we can estimate the treatment capacity. For example, if the micro-electrolysis process takes 60 minutes, one cubic meter of filler can treat 0.6 cubic meters of water per hour. If the test duration is 30 minutes, then the treatment rate would be 60/30 × 0.6 = 1.2 cubic meters per hour. This calculation can be applied similarly for other time intervals.
**Iron Carbon Filler Experiment – Summary of Wastewater Treatment Technologies**
**Miss Li – 186-6364-0492**
1. **Printing and Dyeing Wastewater:** The micro-current and magnetic field effects between iron and carbon can break down chromophores, effectively decolorizing the wastewater.
2. **Electroplating and PCB Wastewater, Heavy Metal Complex Wastewater:** New ecological iron ions produced at the anode reduce heavy metal complexes. Combined with electrophoretic effects and iron hydroxide co-precipitation, this helps remove heavy metals and COD from the wastewater.
3. **Nitrobenzene, Aniline, Coking, Petrochemical, Hydrogen Peroxide, Rubber Auxiliary, and Benzene Ring Wastewater:** A 1.2V potential difference between iron and carbon generates a magnetic field that causes electron movement, breaking down carbon chains and rings. This reduces COD significantly and improves biodegradability, converting refractory substances into more degradable forms.
4. **Pharmaceutical Wastewater:** The micro-current effect converts stable compounds into more decomposable ones, reducing COD and disinfecting pathogens in hospital wastewater.
5. **Papermaking Wastewater:** Micro-electrolysis, magnetic fields, and redox reactions break down long-chain polysaccharides into simpler sugars, improving biodegradability and making it easier to remove through Fenton oxidation.
6. **Livestock Wastewater and High-Concentration Organic Wastewater:** Micro-electrolysis breaks down organic chains and destroys chromophore groups, reducing COD, ammonia nitrogen, and phosphorus levels.
**Iron Carbon Filler Experiment – Detailed Data on Various Wastewaters**
1. **Pig Farm Wastewater:** Initial COD: 12,163.05 mg/L; Ammonia Nitrogen: 1,080.16 mg/L. After small-scale denitrification tower, COD dropped to 1,790.43 mg/L, and ammonia nitrogen to 13.28 mg/L. After micro-electrolysis, COD was 384.27 mg/L.
2. **Electroplating Wastewater:** Raw Water COD: 945 mg/L; After Micro-Electrolysis: 135 mg/L.
3. **Nitrobenzene Wastewater:** Raw Water COD: 3,800 mg/L; Nitrobenzene: 82.5 mg/L. After Iron-Carbon Micro-Electrolysis + Fenton: COD: 107 mg/L; Nitrobenzene: 0.26 mg/L.
4. **Aniline Wastewater:** Raw Water COD: 5,035 mg/L; After Two-Stage Micro-Electrolysis + Fenton: COD: 113 mg/L.
5. **Modified Starch Wastewater:** Raw Water COD: 12,000 mg/L; After Two-Stage Micro-Electrolysis: 5,875 mg/L.
6. **Cattle Wastewater:** Raw Water COD: 11,034 mg/L; After Two-Stage Micro-Electrolysis: 1,416 mg/L; After Two-Stage Micro-Electrolysis + Fenton: 857 mg/L.
7. **Chemical Wastewater:** Raw Water COD: 20,000 mg/L; After Two-Stage Micro-Electrolysis + Fenton: 1,600 mg/L.

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