What could cause buzzing from audio interface and mic

#WHAT COULD CAUSE BUZZING FROM AUDIO INTERFACE AND MIC PC#

I do realise I'm going to get some interference because of the proximity of everything but I'll just have to try and clean up the audio as much as possible after recording. I don't have a lot of space to play around with at all and using another room isn't possible. I live in a small flat/apartment and so my living room doubles up as my studio (well the small corner section in the photos).

#WHAT COULD CAUSE BUZZING FROM AUDIO INTERFACE AND MIC PC#

So I will have to look into getting some sort of ground loop isolator for it yes I do sit that close to the PC and monitor etc mainly because it's close to my mixer for hooking up all my gear and I can keep an eye on Mixcraft when I'm recording etc. I didn't hear any buzzing or hissing at all (or barely) so I then plugged in the Zoom pedal and it was still fine and lastly I plugged in the Korg and then the buzzing came back. I unplugged everything from the power strip and just had the mixer plugged in and turned it on. I think I've found the culprit, it was the power adapter for my Korg Kaossilator Pro. Thanks for any help people can give, I realise I'm probably doing lots of things wrong but I am a bit new to things although I do have a reasonable idea of things, just need pointing in the right direction. Subsequently I have to remember to turn them back down again when I'm not recording for normal PC use and gaming. The only way round this is to set the inputs on the mixer (each channel has a volume slider and basic EQ parameters) to a lower level to stop peaking and then turn my M-Audio AV30 speakers up higher so I can actually hear the music at a good level. It's causing my recordings to have constant hissing/humming which I can try to EQ out a bit but because of the noise, it's also causing my Focusrite to start peaking even with the gain knobs just set halfway (the little front switches are set to instrument, not line input). I don't have a lot of space really and so I'm trying to do the best with what I have but I am willing to buy better cables or possibly a DI box if that will help. I have also taken a photo of the plugs/power adapters as I have read this could also be an issue. Ultimately everything is recorded into Mixcraft using the Focusrite. I also have my Zoom G3X connected to the mixers effect return and the effect out channels, this is so I can apply effects to all the inputs of the mixer or just one (each channel has it's own rotary effect controller) and also be able to use the Zoom's looper to create loops from any or all of the inputs.ДЄnyway, I am using different lengths of cables and different types as I use a lot of different gear such as the Microkorg, Korg Monotribe, Korg Volca's etc. Into the mixer I have various phono and 1/4 inch jack cables for anything I want to connect such as a guitar, synth or microphone (the mic you see in the photo is connected to one of these channels by 1/4 inch jack). I am using an old Tascam M-06 mixer which is then being output via the PGM Out to the inputs on my Focusrite Scarlett 2i2 audio interface on my PC. Here are some photos of my basic home setup: I have researched this problem somewhat but it seems that the cause of the noise could be from any number of things so I thought by providing photos of my setup, you might be able to help me eliminate what it is. I was hoping people might be able to help me eliminate the ground hum and/or general buzzing noise I hear which seems to be coming from the mixer I use or at least the inputs.

What could cause buzzing from audio interface and mic