There are appears to be some ...

There are appears to be some real value in the responses so far...I am not familiar w the regulatory issues but I am quite inclined toward process options.

Laundry water is "Grey Water," as noted in another response.  Given that grey water does not include sanitary wastewater by the structure of your question I am wondering if you meant sanitary wastewater..."agua negra" or "black water."

In processing either water knowledge of what processing is in-ace is the beginning.  If the black water is tertiary from a municipal facility the treatment requirements are effectively - none.  If these waters are not yet treated...primary concerns, for both waters would include:

1. Biological treatment

2. Removal of suspended solids

3. Destruction of residual organics - synthetic and natural.

Intense UV would be an excellent starting point - will do some work in reducing biological contaminants and initiate the destabilization of suspended contaminants and soluble organics.  An enhanced media filter (inorganic physical filtering substrate with oleophilic coating) downstream of the UV to grab particulate 8 to 10 microns and above would be a good step.   In fact, repeating those steps - UV again but followed by a polishing filter (2+ micron) would likely get you where you needed to be. Follow those process boxes with chemical oxidant addition.  The second UV exposure can achieve biological control and greatly assist in reduction of soluble organics.

If this is grey water these process steps would be sufficient - if black water - the biological hazards would warrant serious attention. In-door recycling has been accomplished using ultrafiltration - Membrane Bioreactors.  But always the principle steps are oxidation to eliminate pathogens.

Good sources:  GE Water (now Suez) for MBR based internal recycle and MYCELX RE-GEN and Polisher for the enhanced media and polishing filtration steps.