Laravel: Serialize PDO error with pushing raw query in Queue

I'm having a problem with pushing raw insert query to Queue (Beanstalkd). I want to execute raw insert with subquery inside it. I want to send it to queue.

It is inside loop and date changes over loop.

Queue::push(function($job) use ($date)
            {
                DB::statement("Insert into orders Select * from order_ab where date= ?", $date)
                $job->delete();
            });

Error is : You cannot serialize or unserialize PDO instances in vendor/jeremeamia/SuperClosure/src/Jeremeamia/SuperClosure/SerializableClosure.php

Please , Help me to resolve this issue.

via Chebli Mohamed