Mud Solids Control System for Zero Discharge

When someone says “zero discharge,” most people think it means spending a fortune on equipment. But after building solids control systems for over a decade at TR Solids Control, I can tell you that hitting zero discharge is more about smart design than expensive add ons.

Here is what actually works.

Start with the shaker, but do not stop there

A good solids control system begins with a linear motion shaker. You want something that handles your peak flow without bypassing screens. Our shakers run at adjustable G force, so you can switch between coarse and fine screens as the formation changes. That alone cuts fluid loss by a noticeable amount.

But a shaker alone will never get you to zero discharge. It leaves fine solids in the mud, and those solids build up until you have to dump the whole pit.

Add a mud cleaner or centrifuge depending on your mud

For water based mud at shallow depth, a mud cleaner with desanders and desilters is usually enough. It pulls out particles down to 15 microns. The solids control system then returns clean mud to the active pit, and the discard is dry enough to pass basic tests.

For oil based or synthetic mud, you need a centrifuge. No way around it. A decanter centrifuge recovers barite and pulls out ultrafine solids. We use variable frequency drives so one unit switches between barite recovery mode and fine solids discharge mode. That saves buying two machines.

Cuttings drying is where zero discharge actually happens

Here is the reality. Even with good separation, your cuttings will have some fluid on them. That fluid will leach out if you just pile them on site. To truly achieve zero discharge, you need a cuttings dryer.

TR Solids Control vertical cuttings dryers spin the cuttings at high G force. We regularly see oil on cuttings drop below 3 percent. At that point, the solids are dry enough to landfill or even reuse as road base. No discharge, no leachate, no problem.

Tie it together with simple automation

You do not need a room full of screens and computers. But you do need basic monitoring. A flow sensor, a torque gauge on the centrifuge, and an alarm for shaker screen tears. That is it. We learned that fancy systems just confuse the crew. Keep it rugged and easy.

A real example

Last year, a client in West Texas was dumping wet cuttings into pits and buying new mud every week. Their old solids control system was basically just two shakers. We added a mud cleaner, a centrifuge, and a small cuttings dryer. Fluid loss dropped by 70 percent. Disposal volume went down by half. They passed their zero discharge audit without any violations.

What to avoid

Do not buy the cheapest shaker you find. Thin metal cracks. Do not skip the dryer and think you are at zero discharge. You are not. And do not ignore training. We spend time on site showing crews how to adjust screen angle and centrifuge speed. That makes all the difference.

The solids control system for zero discharge does not have to be the most expensive on the market. But it has to be complete. Shaker, mud cleaner or centrifuge, and a cuttings dryer. Plus basic automation and good training. That is the formula we use at TR Solids Control.

If you want to talk through your specific operation, give us a call. We do not push packages. We listen first, then recommend what actually works.