A device for removing impurities from a liquid, preferably sewage, includes a pivoted filtering drum having a filtering surface, equipped with a drum drive operatively connected to the filtering drum to turn the filtering drum around a rotating axis. A cleaning system cleans the filtering surface and has a guide and a spray nozzle arrangement movable back and forth along the guide. Cleaning liquid can be sprayed on the filter surface. The spray nozzle arrangement may include at least one carrier movable back and forth along the guide and at least one spray nozzle mounted on the carrier so that it can be moved around an axis. A related method for cleaning a corresponding device is disclosed.

Systems and methods are provided for monitoring micro-electro-mechanical (MEM) devices removed from a fluid flow stream from a wellbore by a component of solids control equipment used with a drilling operation. The system can include a first MEM reader. The system can also include a second MEM reader. The first MEM reader can be positionable proximate to the fluid flow stream for detecting MEM devices in the fluid flow stream. The second MEM reader can be positionable proximate to the fluid flow stream and between the fluid flow output and the wellbore for detecting at least a subset of the MEM devices in the fluid flow stream. The system can further include a computing device for determining an amount and types of the MEM devices removed from the fluid flow stream by the component of solids control equipment.

Systems and methods are provided for monitoring micro-electro-mechanical (MEM) devices removed from a fluid flow stream from a wellbore by a component of solids control equipment used with a drilling operation. The system can include a first MEM reader. The system can also include a second MEM reader. The first MEM reader can be positionable proximate to the fluid flow stream for detecting MEM devices in the fluid flow stream. The second MEM reader can be positionable proximate to the fluid flow stream and between the fluid flow output and the wellbore for detecting at least a subset of the MEM devices in the fluid flow stream. The system can further include a computing device for determining an amount and types of the MEM devices removed from the fluid flow stream by the component of solids control equipment.

A drilling mud remediation and drilling cutting treatment device and method. There are three main components: a vacuum liquid solid separator; a pelletizer; and an induction furnace. The liquid solid separator has a seamless filter belt configured to carry a mixture of liquids and solids over a vacuum. A slurry comprised of drilling mud and cuttings is deposited on the filter belt. An applicator ensures that the slurry is deposited evenly across the entire filter belt at a uniform thickness. The vacuum removes most of the liquids for further treatment and reuse. The solids are transferred to a pelletizer which compacts them into relatively uniform pellets while removing much residual liquid. The pelletized cuttings are then passed through an induction furnace, which removes any residual liquids, renderings the cuttings safe for disposal.

A drilling mud remediation and drilling cutting treatment device and method. There are three main components: a vacuum liquid solid separator; a pelletizer; and an induction furnace. The liquid solid separator has a seamless filter belt configured to carry a mixture of liquids and solids over a vacuum. A slurry comprised of drilling mud and cuttings is deposited on the filter belt. An applicator ensures that the slurry is deposited evenly across the entire filter belt at a uniform thickness. The vacuum removes most of the liquids for further treatment and reuse. The solids are transferred to a pelletizer which compacts them into relatively uniform pellets while removing much residual liquid. The pelletized cuttings are then passed through an induction furnace, which removes any residual liquids, renderings the cuttings safe for disposal.

There is described a system and a process for optimizing and controlling upstream fluid treatment processes using information on fluid characteristics obtained from response variables of a separation device (such as the belt speed or water level of an RBF). This system and process allow for the upstream or downstream treatment processes to be adjusted and optimized against the instantaneous operating conditions of the separation device such that both the pre-treatment and post-treatment processes and the separation system always run at an optimal efficiency. Additionally, since the information obtained from the response variables of the separation device truly reflect the fluid characteristics at the point where the separation system is installed, the same can be used to control a downstream process (for example, the amount of oxygen required in the biological oxidation stage or the sludge retention time in an side stream sludge treatment process such as fermentation or anaerobic digestion).

The present discloses a waste screening apparatus comprising: a main body; a waste screener vertically and tiltedly disposed in the main body to screen wastes in the input water and to allow waste-removed water to be discharged through water discharge holes defined in both side faces of the main body respectively, wherein the waste screener vertically circulates in a conveyor manner, wherein the input water is input to a front, rear and bottom of the waste screener; wherein the main body includes: both side walls having the water discharge holes defined therein respectively to allow waste-removed water to be discharged out from the waste screener therethrough; and a rear blocking wall disposed at a rear of the waste screener to be spaced from the waste screener, wherein the input water passes through front and rear portions of the waste screener with wastes being removed from the input water, and, then, is discharged out through the water discharge holes defined in the both side walls respectively.

A filtration device has a primary conveyer tank which is equipped with a first conveyer, a primary drum filter which rotates inside the primary conveyer tank, a secondary conveyer tank which is equipped with a second conveyer and a secondary drum filter which rotates inside the secondary conveyer tank. Liquid in the primary conveyer tank passes through a first opening to flow into the secondary conveyer tank. Clean liquid flowing into a first clean tank is supplied to a low-pressure-side supply system by a first pump. Super-clean liquid having been filtered by the secondary drum filter passes through a second opening to flow into a second clean tank, and then is supplied to a high-pressure-side supply system by a second pump.

A filtration device has a primary conveyer tank which is equipped with a first conveyer, a primary drum filter which rotates inside the primary conveyer tank, a secondary conveyer tank which is equipped with a second conveyer and a secondary drum filter which rotates inside the secondary conveyer tank. Liquid in the primary conveyer tank passes through a first opening to flow into the secondary conveyer tank. Clean liquid flowing into a first clean tank is supplied to a low-pressure-side supply system by a first pump. Super-clean liquid having been filtered by the secondary drum filter passes through a second opening to flow into a second clean tank, and then is supplied to a high-pressure-side supply system by a second pump.

An apparatus and method are provided that enable the control of a screening operation based on a calculated screen blockage percentage and the velocity throughput of the screen. The apparatus includes an upstream level detector, a downstream level detector and flume or weir placed downstream of the screen. The apparatus may further include a blockage determination unit which determines the percent screen blockage based on the flow level upstream of the screen and the flow level downstream of the screen.