How to Regulate the Management of Waste Water and Waster Gas?

Wastewater pollution control facilities

After the wastewater treatment system has been shut down for a long time, where should the sewage pollution control facilities be checked before being put back into use?

Industrial wastewater treatment facilities are generally composed of wastewater pipelines, power supply lines, pump equipment, pharmaceutical systems, sludge treatment systems, and various wastewater treatment units. Before returning to use, the above should be checked. In the petroleum, chemical industry, sewage treatment, domestic household water, or large-scale public facilities water industry, we will use stainless steel valve / stainless steel pipe fitting, and at the same time, the following will introduce some specific methods.

(1) The waste water pipeline should focus on checking the waste water pipeline, valves, connections, etc. for damage, clogging, and leakage. Before powering on, check the power supply line to ensure the safety of electricity.

(2) The mechanical pump equipment mainly checks its mechanical sealing performance and whether the pump port is blocked. Before use, pay attention to replacing the air in the pump body and the pipeline.

(3) Regarding the pharmaceutical system, check whether the pharmaceutical pumping system is normal, and exclude the faults of the metering system and machine pump equipment, damaged containers, and blocked pipelines. Confirm whether the medicine remaining in the medicine bucket can be used normally, if not, it needs to be reconfigured. For the easy-precipitating medicament, it needs to be stirred for more than half an hour before it can be used normally.

(4) After the sludge dewatering equipment is shut down for a long time, the equipment needs to be cleaned to prevent the sludge from collapsing. At the same time, the site personnel should strengthen the inspection after the initial start-up to avoid the sludge pump blocking and the automatic feeding.

(5) Regarding the wastewater treatment unit, focus on checking whether the stirring system and aeration system are operating normally, and understands the remaining sludge volume, activated sludge activity and concentration, etc. At the same time, pay attention to the temperature of the wastewater entering the anaerobic system and the concentration of harmful chemicals, so as not to affect the activity of the anaerobic bacteria. In addition, if it is equipped with ultrafiltration and reverse osmosis and other advanced treatment facilities, after a long shutdown, it should be backwashed or chemically cleaned according to the system operating instructions to ensure its advanced treatment effect.

Exhaust gas treatment facilities

Important notes

(1) When checking the exhaust gas collection system, pay attention to whether the air collection hood, exhaust gas pipe fittings, valves, fans, etc. are intact.

(2) Before using the UV photolysis equipment, clean the pre-filter, check whether the electric control system is normal, and replace the damaged UV lamp.

(3) Pay attention to check the properties of activated carbon, and replace it in time according to the use period.

Key points for acid mist waste gas treatment facilities

(1) The chemical liquid system is an important component of the acid mist waste gas treatment facility. Before resuming work, it is necessary to check whether the sprayed chemical liquid is effective and whether it is necessary to replace or supplement the chemical. The waste spray liquid after replacement needs proper disposal. The spraying liquid can be tested with pH test paper and sodium hypochlorite test paper.

(2) The chromic acid mist is generally equipped with a recycler before the spray tower. Before resuming work, the debris and dirt in the circulation system should be removed to check whether the recycler is operating normally.

Important matters need attention in dust and waste gas treatment facilities for bag dust removal

Focus on checking whether there are any bags falling, loose, damaged, damp, paste bags, etc., and replace the bags as necessary. In addition, we must focus on checking the soot blowing system and the ash discharging system. The inspection can be carried out in combination with the parameters such as the detection air volume, the pressure and temperature of the test point.

Key considerations for boiler exhaust gas treatment facilities

Boilers that burn biomass particles generally use single or combined processes such as cyclone dust removal and bag dust removal to control their combustion exhaust gas. For those equipped with cyclone dust collectors, it is important to check the air tightness of the dust collector, whether there is blockage in the ash discharge port and intake and exhaust ports, and also check whether the ash discharge valve is normal. It should be noted that the bag filter of the flue gas treatment bag filter system will generally be equipped with a flame arrester at the front end to prevent bag burning, so the flame arrester should be inspected when it is restarted.

How to deal with hazardous chemicals and hazardous waste in waste gas treatment

When using hazardous chemicals or producing toxic and harmful gases or hazardous wastes in the process of waste gas treatment, it is important to check whether production equipment and production processes have hidden environmental safety hazards, do a good job in environmental safety risk assessment, and store hazardous chemicals in compliance store and dispose of hazardous waste.

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