1/2: 150bb Deep: Anyone value bet/fold river?

[pureklas]

Villain is 40/10/0.7/60hands

Felt as villain limped he was on a weak Ace so bet turn as the Q only makes KJ and QT. i would have folded to a raise here. On the river I am not sure if a worse hand calls a bet so should I check here or bet/fold?

No Limit Holdem Ring game
Blinds: $1/$2
5 players
Converter

Stack sizes:
UTG: $304.52
CO: $314.40
Hero: $503.68
SB: $469.95
BB: $72.08

Pre-flop: (5 players) Hero is Button with K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img]
UTG folds, CO calls, <font color="#cc0000">Hero raises to $10</font>, SB folds, BB calls, CO calls.

Flop: T[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img] ($31, 3 players)
BB checks, CO checks, <font color="#cc0000">Hero bets $22</font>, BB folds, CO calls.

Turn: Q[img]/images/graemlins/heart.gif[/img] ($75, 2 players)
CO checks, <font color="#cc0000">Hero bets $52</font>, CO calls.

River: 6[img]/images/graemlins/heart.gif[/img] ($179, 2 players)
CO checks, <font color="#cc0000">Hero??