What methods are there to reduce wastewater discharge from pig farms?

Environmental inspections are strict these days, and places with relatively large wastewater discharge like pig farms have always been a key target of scrutiny, which has increasingly become a concern for farmers. In fact, farms can reduce the amount of wastewater by using less water, so how do you reduce wastewater discharge from a pig farm? The following few tips are extremely effective!

1. Retrofitting drinkers

First of all, the way pigs drink water needs to be adjusted. A pig's mouth is rather unusual, and when it drinks it basically swallows half and spills half, creating a fairly large amount of wastewater. Actually, the water spilled while drinking cannot be counted as wastewater, and draining it away directly has no impact. But some farmers, for convenience, let it flow into the wastewater discharge, which increases the amount of wastewater discharged. So set up a separate drainage trough where the pigs drink, and do not mix it with the wastewater discharge; this will noticeably reduce wastewater discharge.

2. Reduce the number of times pig pens are washed

Washing pig pens is a major producer of wastewater. Some current fermentation-bed farming and pig-raising-bed farming methods were actually invented to reduce the number of times pig pens are washed. If your conditions are not sufficient, you can use the dry manure clearing method, that is, directly remove the manure by hand the first few times and rinse only once every few rounds; this will also noticeably reduce the amount of wastewater produced, though with this approach you need to pay a bit more attention to disinfection.

3. Do a good job of separating water and wastewater

Pig farms use water in many places. For example, the first water used to wash feed troughs and the water used to wash pig pens are basically wastewater and need to be treated, but the other water generally does not count as wastewater. So the entire farm site had best use two drainage systems: cover the wastewater with movable lids to prevent the other relatively clean water from flowing into it and increasing the amount to be treated. The other water can be collected together for treatment, and this way wastewater discharge will be much less as well. Never treat them mixed together.

4. Add probiotics to the feed

The strong odor that accompanies wastewater on pig farms is mainly due to the relatively large amount of ammonia in the manure water, which to a certain extent increases the difficulty of wastewater treatment, since odor pollution is not easy to deal with. At present, many farmers add some probiotics to the feed the pigs eat, which can greatly reduce the pigs' ammonia emissions, so wastewater treatment becomes much less difficult and, indirectly, wastewater discharge is also reduced.

Reducing wastewater discharge can only be tackled from every angle. A single saving may not seem like much, but when combined with the number of animals raised, the duration and multiple types of measures, everyone will be able to directly feel the reduction in wastewater discharge. For the sake of your pig farm's better development, take action right away!