KEMLOOP Key Benefits

Filtration
- Arsenic Removal
- TOC (Disinfection Byproduct) Removal
- Turbidity Removal
- Radium Removal
- Iron and Manganese Removal
- Color Removal
Automation
- Panel Control/Operator Interface
- Remote Control using Network Technologies
- Alarm Notification
- Real-time Data Collection and Monitoring
Low Operating Cost
Modular Design
Decreased Equipment Down TIme

KEMLOOP Specs (PDF)

Kemloop filters are scalable and come in different sizes providing filtration capacity ranging from 25 GPM to 600 GPM.
The following Kemloop Technical Data Specification Sheets provide the quick view to the different sizes of KEMLOOP.

Kemloop Kemloop Model 10-35
Kemloop Model 50-90
Kemloop Kemloop Model 150-200
Kemloop Model 300-400
Kemloop Model 600-800

Instrumentation

We use the finest of instruments and components for our ORCA KEMLOOP Filter Systems just like one would expect in the large commercial water filter plant. To give you a meaningful example, the following list of instruments you would find installed on our smallest KEMLOOP 35 System.

2 HACH 1720E Turbidimeters

1 Dedicated turbidity meter display for 2 inputs

3 +GF+ Signet commercial grade paddle wheel flow meters (4-20mA)

1 +GF+ Signet 8900 Multi-Parameter Controller

1 HACH 9184 Chlorine TFC Analyzer

2 +GF+ Signet commercial grade pH probes (4-20mA)

2 Chemical meter pumps controlled by 4-20mA signal

Please, note that ORCA reserves the right to change the type and quality of the instruments in the future.

KEMLOOP Filters

The KEMLOOP Coagulation and Filtration Water Treatment System is a full-scale, skid mounted system for the treatment of groundwater.

The KEMLOOP system is a self-contained, complete system that connects to either a pressurized water supply or to a non-pressurized supply source. If the source is not pressurized, a pump, supplied with the unit, is used to pump the water through the treatment system. The unit delivers filtered water to either a site supplied collection tank or other drainage location. Initially, the Kemloop Coagulation and Filtration Water Treatment System was initially designed for arsenic removal from drinking water; however, it has evolved into an excellent choice for other filtration applications.

The KEMLOOP system is fully automated and programmed to control all aspects of the filter operation. The control system will automatically initiate backwash cycles based on four criteria: differential pressure across the media filter, treated water turbidity compared to raw water turbidity, and time or volume set by the operator. The backwash cycle time will be dependent on the water quality conditions and the amount of solids generated in the coagulation process.

The Controller

Controlling of the filter is accomplished by very sophisticated and dependable PLC controller - Orca Filter Control Unit (OFCU) rated to work in outdoor temperatures and conditions. Control panel, which consists of integrated display screen and keypad, allows the user to take full control of the filter and monitor all the intrument signals. Optionally, PC (laptop or workstation) using local control software via LAN or serial port may be used to further control the unit and/or exchange repository data. There is wide range of data aquisitions and remote monitoring functionality (LAN, INTERNET, serial, modem based) from ORCA to support this water filter line. ( more on OFCU and web based PC link solutions ....).

Filter Modes

Even the smallest Kemloop 35 system provides at least two filter tanks. Filter tanks can be used in three different modes of operations: single, serial, and parallel. Such design demonstrates multiple advantages and icreased flexibility:

Filter backup just in case one needs to be put temporarily off-line.
Allows for filtering non-stop while backwashing one of the filters and uniform use of all the filter tanks
In parallel mode, water flows simultaneously trough both filter tanks. This way you can increase the productivity of filtration.
In serial mode, water is directed through both filters. In this mode, you can dramatically increase qualify of filtrations especially when the first filter tank is filled with different media then the second filter.

All of the modes and operations are fully automated and controlled by the OFCU. Multiple valves are switching seamlessly between the modes or phases of the operations.

Intruments and Automation

The OFCU continuously gathers the data from multiple instruments installed in the KEMLOOP system. Even in the simplest design of KELOOP 35, we measure raw water flow, turbidity, and pH as well as effluent (feed) water turbidity and pH. We also, monitor the water pressure and differential pressure on each filter tank. Additionally, we measure the chlorine level, backwash water flow, and recycled water flow (patented back feed water flow that is unique to KEMLOOP design).

Based on this data, we can intelligently induce backwash cycle, determine the quality of the media in the filter, or control speed of chemical feeding pumps. We can also issue an alarm to indicate a problem but in critical situations we will automatically shutdown the filter system.

Manual Operations

Even though, the KEMLOOP system is fully automated and designed to be run unattended most of the time, we include numerous features that allows for manual operations and tuning. In fact, the Orca Control Filter Unit (OFCU) may be put into manual mode and each valve can be switched and turned manually to desired position. The OFCU will still read and record all the data from the instruments but the operations are fully manual. To facilitate this mode, we include secondary pressure gauges, dedicated displays for turbidity, flow, and chlorine analyzer meters.

The Filtration Process

The KEMLOOP Filtration System is based on chemical coagulation, well known as efficient process for treating the water. In essence, a chemical form of coagulant (e.g. ferric chloride) is added to water, and the pH is adjusted to an optimal level to form a floc. The mixing process helps to build the floc into larger particles that later are removed by filtration in filtration tanks. The unique design of the KEMLOOP process is based on a proprietary mixing loop to optimize the coagulation process, and granular media filtration with no intermediate solids separation process.

Our sudies show that the KEMLOOP Coagulation and Filtration Water Treatment System is a very efficient and economic process desirable even by the very small entities. More about coagulations and arsenic removel process ...